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TA1275BFNG
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA1275BFNG
SECAM Demodulator Processor
The TA1275BFNG is a SECAM demodulation IC, used in combination with the TB1309 series to achieve a multicolor system. This IC requires very few external parts.
Features
Combines with the TB1309 series, which is a video processor, timing controller, and PWM pulse processor for analog LCDs Built-in bell filter Built-in FM demodulator with PLL circuit for color demodulation and SECAM identification DC voltage offset for demodulated signal adjuster Input terminals for external R-Y / B-Y signals SSOP24-P-300-0.65A Weight: 0.09 g (typ.)
Pin Connection
24
BELL CONT SCP in
23
Y IN Vcc 5V (Pulse)
22
BELL f0-ADJ. FILTER N.C.
21
N.C. 4.43CW-IN GATE WIDTH
20
C IN S-LOW PASS SW H/H+V ID SW
19
f0-ADJ. FILTER SECAM ID I/O
18
GND Y OUT BELL MON
17
N.C. DL MODE SW
16
EXT. B-Y IN R-Y OUT
15
Vcc 5V (Y/C) R-Y BLACK CONT
14
EXT. R-Y IN B-Y OUT
13
ID FILTER B-Y BLACK CONT
1
2
3
4
5
6
7
8
9
10
11
12
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TA1275BFNG
Block Diagram
P/N 3V B/W 2V
C IN/ S-LOW PASS SW
f0-ADJ. FILTER
1V (p-p)
DL MODE SW
SECAM ID I/O
4.43CW-IN GATE WIDTH
H/H+V ID SW
3.95V 2.7V 1.6V
BELL f0-ADJ. FILTER
BELL CONT
ID FILTER
SCP in
+
Y IN
8
23
20
13
6
19
24
5
22
4
1
250ns Y-DL
5.5MTRAP
CLAMP FLIP/FL OP SYS-I/O LOGIC GP/H/V SEPA PULSE
R. BLACK CONT
SIDENT
f0-ADJ -DET
f0SHIFT -DAC
BELL DAC
GateWidth/S W
REFBIAS
P/N/S R-Y SW
R-Y LowPass
R-Y De-emp
R-Y PERMU
LOW PASS
4.43M VCO
BELLMON
BELLADJDET
4.43MCW
P/N/S B-Y SW
B-Y LowPass
B-Y De-emp
B-Y PERMU
DEMO
PHASEDET
LIMIT
BELLFILTER
SW
COLOR AMP
1/2 TRAP
LOW PASS SW
B. BLACK CONT
IDENT AMP
ACC CONT
7
Y OUT BELL MON
9
R-Y OUT
11
B-Y OUT
16
EXT. B-Y IN
14
EXT. R-Y IN
12
B-Y BLACK CONT
10
R-Y BLACK CONT
2
Vcc 5V (Pulse)
15
Vcc 5V (Y/C)
18
GND
3
N.C.
17
N.C.
21
N.C.
Some functional blocks, circuits or constants may be omitted or simplified in the block diagram for explanatory purposes.
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Maximum Ratings (Ta = 25C)
Characteristic Supply voltage Input pin voltage Power consumption Power consumption reduction ratio Operating temperature Storage temperature Symbol VCCmax Vin PD (Note) 1 / Qja Topr Tstg Rating 8 GND - 0.3 ~ Vcc + 0.3 780 6.3 -30~85 -55~150 Unit V V mW mW / C C C
Note:
When using the device at above TA = 25C, decrease the power dissipation by 9.1 mW for each increase of 1C.
The absolute maximum ratings of a semiconductor device are a set of specified parameter values that must not be exceeded during operation, even for an instant. If any of these ratings are exceeded during operation, the electrical characteristics of the device may be irreparably altered, in which case the reliability and lifetime of the device can no longer be guaranteed. Moreover, operations with exceeded ratings may cause breakdown, damage and/or degradation in other equipment. Applications using the device should be designed so that no maximum rating will ever be exceeded under any operating conditions. Before using, creating and/or producing designs, refer to and comply with the precautions and conditions set forth in these documents.
Operating Conditions
Characteristic Supply voltage Y Input signal level Color difference input level Pin 2, 15 White: 100%, including sync. Burst level G level SCP input level H level V level 4.43 MHz CW input level Pin 4 Description Min 4.75 0.9 270 3.25 1.95 1.1 200 Typ. 5.0 1.0 300 4.0 2.1 1.25 Max 5.25 1.1 330 5.0 2.6 1.4 mV (p-p) V Unit V (p-p) mV (p-p)
Electrical Characteristics
(YC VCC / Pulse VCC = 5 V, Ta = 25C, unless otherwise specified)
Current Consumption
Pin Name VCC (Y / C) VCC (Pulse) Symbol ICC1 ICC2 Test Circuit Min 32.0 5.6 Typ. 38.5 6.7 Max 48.1 8.4 Unit mA
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Terminal Voltage
Pin No. 4 5 6 7 8 9 10 11 12 13 14 16 19 20 22 23 24 Test Circuit
Pin Name 4.43 MHz CW-IN ID SW SECAM ID I / O (killer OFF) Y OUT MODE SW R-Y OUT R-Y BLACK CONTROL B-Y OUT B-Y BLACK CONTROL S-ID FILTER (killer OFF) EXT. R-Y IN EXT. B-Y IN F0-ADJ. FILTER C IN BELL ADJ. FILTER Y IN BELL CONTROL
Symbol V4 V5 V6 V7 V8 V9 V10 V11 V12 V13 V14 V16 V19 V20 V22 V23 V24
Min 2.50 2.30 0.00 2.35 1.80 2.10 2.30 2.10 2.30 4.25 2.40 2.40 2.55 3.50 2.20 2.30 4.80
Typ. 2.75 2.50 0.20 2.55 2.00 2.40 2.50 2.40 2.50 4.55 2.60 2.60 3.00 3.70 2.50 2.50 5.00
Max 3.00 2.70 0.60 2.75 2.20 2.70 2.70 2.70 2.70 4.85 2.80 2.80 3.45 3.90 2.80 2.70 5.20
Unit
V
Note:
The pins numbered 1, 4, 9, 10, 12, 13, 14, 19, 20 and 24 of this product are sensitive to electrostatic discharge. When handling the product, protect the environment to avoid electrostatic discharge.
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Terminal Interface
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes.
Pin No. Pin Name Function Interface Circuit
2
Input/Output Signal
The pin for inputting the sand castle pulse (SCP) 1 SCP IN
1
18
2 3
Vcc 5 V (Pulse) N.C. (No Connection)
VCC pin for logic block Connect to GND.

15

4
4.43CW-IN GATE WIDTH
The pin for inputting 4.43 MHz of carrier wave for the selfadjustment circuit. Input a 500 mVp-p sine wave through a coupling capacitor. The switch for changing the gate pulse width is overlaid on this pin. +200 nS 0ns -200 nS : : : to VCC thru 33 k open to GND thru 33 k
4
18
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Pin No. Pin Name Function Interface Circuit
2
Input/Output Signal
The switch pin for selecting the ID detection mode. 5 H/H+V ID SW
connected to VCC Auto search (H, V, H+V) : opened H : connected to GND
H+V
:
5
18
The interface pin to the main processor (i.e., TB1309). This input/output interface pin sinks two values of current corresponding to the ID level of the SECAM input signal. 6 SECAM ID I / O Strong SECAM : 420 A
6
15
Internal External
: :
GND~2.5 V 2.5 V~VCC
50
SECAM : 180 A This pin turns the internal/external switch by the input DC voltage.
18
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Pin No. Pin Name Function Interface Circuit
15
Input/Output Signal
7
Y OUT BELL MON
The output pin for the Y signal. The standard output level is 1.0 Vp-p. The 5.5 MHz trap filter and delay line on the Y signal processing is controlled by the switch on Pin 8. The output signal of the bell filter can be monitored on this pin by switching Pin 20 for testing.
7
18
15
The pin for controlling the Y processing mode. 8 DL MODE SW To VCC Open To GND : : : 5.5 MHz trap 5.5 MHz trap + DL DL
8
18
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Pin No. Pin Name Function Interface Circuit
15
Input/Output Signal
9
R-Y OUT
The output pin for demodulated R-Y signal. Standard output level is 0.7 Vp-p with a standard color bar signal. R-Y processor has an LPF to eliminate the carrier components.
9
18
15
10
R-Y BLACK CONTROL
The pin for controlling the black offset level. Adjusting range is within 30 mV. (This pin should be opened in the case of use with the TB1309as the TB1309 has an IIC BUS control for SECAM black alignment.)
10
18
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TA1275BFNG
Pin No. Pin Name Function Interface Circuit
15
Input/Output Signal
11
B-Y OUT
The output pin for demodulated B-Y signal. The standard output level is 0.56 Vp-p. The B-Y processor has an LPF to eliminate the carrier components.
11
18
15
The pin for controlling the black offset level. The adjusting range is within 30 mV. 12 B-Y BLACK CONTROL (This pin should be opened in the case of use with the TB1309 as the TB1309 has an IIC BUS control for SECAM black alignment.)
12
18
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Pin No. Pin Name Function Interface Circuit
15
Input/Output Signal
13
ID FILTER
The pin for connecting the SECAM ident filter capacitor. Too large a capacitor causes a time delay obtaining color signal on a picture. Yet a weak RF signal performancegrows worse if the capacitor is too small.
13
18
15
14
EXT. R-Y IN
The input pin for external R-Y signal. The gain of the internal amplifier is 0 dB.
14
18
15
Vcc 5 V (Y/C)
The VCC pin for the Y/C processing block.
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Pin No. Pin Name Function Interface Circuit
15
Input/Output Signal
16
EXT. B-Y IN
The input pin for the external B-Y signal. The gain of the internal amplifier is 0 dB.
16
18
17 18
N.C. (No Connection) GND
Connect to GND. The GND pin.

15

The pin for connecting a capacitor for the automatic adjustment circuit. 19 f0-ADJ. FILTER Too large a capacitor causes a time delay obtaining a color signal on the picture. Yet picture noise and flickeringoccur if the capacitor is too small.
19
18
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TA1275BFNG
Pin No. Pin Name Function Interface Circuit
15
Input/Output
20
C IN S-LOW PASS SW
The chroma signal input pin. Apply composite signal through 0.01 F of coupling capacitor. The standard input signal level is 1 Vp-p.
20
The bell monitor switch for testing is overlaid on this pin. When this pin is connected to GND through 27 k, the bell filter output is observed on Pin 7 (Y-OUT).
18
21
N.C. (No Connection)
Connect to GND.
15
The pin for connecting the filter capacitor for the bell filter f0, 4.286 MHz. 22 BELL f0-ADJ. FILTER Too large a capacitor causes a time delay on the bell filter f0 adjustment. Yet too small a capacitor causes the picture to be noisy.
22
18
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TA1275BFNG
Pin No. Pin Name Function Interface Circuit
15
Input/Output Signal
23
Y IN
The Y signal input pin. Apply the composite signal into this pin through a coupling capacitor. The standard input level is 1.0 Vp-p.
23
18
2
The pin for selecting the bell filter f0 f0+70 kHz f0+35 kHz f0 : : : OPEN (VCC) 20 k to GND (1.7 V) to GND (0 V)
24
BELL CONTROL
24
18
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AC Characteristics (Unless otherwise specified, VCC = 5 V (Pins 2 & 15), Ta = 25C)
No. 1 2 3 4 5 6 7 8 Bell/Filter f0 Bell/Filter f0 Variable Range Bell/Filter Q Color Difference Output Amplitude Color Difference Relative Amplitude Linearity Rising Time Demodulation Hold Range Item Symbol f0B-C f0B-H f0B-L QBEL VBS VRS R / B-S LinB LinR trR trB HRL HBH CRL CBH eSK eSC ErR ErB V6color V6B / W I6strongSE I6SE I6B / W V6P / N V6S V9P / N V11P / N V9S V11S ErR+ ErR- ErB+ ErB- GEXTR GEXTB WGPGND WGP WGPVCC tYDL f0Y5.5 Gat f0 DRYS DRYBW GYS GYBW Test Circuit Test Condition (Note 2) (Note 3) (Note 6) (Note 7) (Note 8) (Note 12) (Note 13) (Note 14) Rating Min -23 +40 +10 14 0.39 0.5 1.24 93 93 4.75 4.75 0.15 0.40 -30 -30 0.12 4.8 310 133 2.3 2.3 2.3 2.3 2.1 2.1 22 -30 22 -30 0.8 0.8 1.7 1.9 2.1 180 4.5 0.9 1.1 0.7 0.8 Typ. 0 +70 +35 16 0.56 0.7 1.35 100 100 1.3 1.3 3.5 5.2 3.5 5.2 0.30 0.65 0 0 0.2 4.9 420 180 0 2.5 2.5 2.6 2.6 2.4 2.4 26 -26 26 -26 1.0 1.0 1.8 2.0 2.2 250 5.5 -35 1.0 1.25 0.9 1.0 Max 30 +100 +60 18 0.73 0.99 1.52 107 107 2.0 2.0 3.9 3.9 0.60 1.20 +30 +30 0.6 5.0 530 225 10 2.7 2.7 2.9 2.9 2.7 2.7 30 -22 30 -22 1.2 1.2 1.9 2.1 2.3 360 6.5 -20 1.1 1.4 1.1 1.2 Unit kHz kHz kHz V (p-p) V (p-p) % % s s MHz MHz MHz MHz mV (p-p) mV (p-p) mV mV V V A A A V V V V V V mV mV mV mV s s s MHz dB V (p-p) V (p-p)
9 10 11 12
Demodulation Capture Range Killer Operation Input Level Black Level Offset ID Voltage

(Note 15) (Note 16) (Note 18) (Note 19)
13
ID Current
(Note 20)
14
System SW Threshold Level
(Note 21)
15
Color Difference Output DC Level
(Note 22)
16
R-Y / B-Y Color Black Level Control Characteristics
(Note 23)
17
Ext. Color Difference Gain
(Note 24)
18
Gate Pulse Width Variable Range Y DL Characteristics (at 3 MHz) Y Trap Characteristics Y Input Dynamic Range Y Gain
(Note 26)
19 20 21 22

(Note 27) (Note 28) (Note 29) (Note 30)
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Test Conditions (Unless otherwise specified, VCC = 5 V (Pins 2 & 15), Ta = 25C)
Note Item Test Condition (1) : Input a 20 mVp-p sine wave whose frequency is sweep into Pin 20. (2) : Connect Pin 20 to GND through 27 k. 1 Bell / Filter f0 (3) : Keep Pin 24 GND. (4) : Measure the frequency at which the Pin 7 output is the greatest, that is, "f0BEL". (5) : Calculate : "f0B-C" = f0BEL-4,286 kHz.
(1) : Input a 20 mVp-p sine wave whose frequency is sweep into Pin 20. (2) : Connect pin 20 to GND through 27 k. 2 Bell / Filter f0 Variable Range (3) : Measure the frequency at which the Pin 7 output is the greatest when VCC is 5.5 V / 4.5 V, that is, f0BEL5.5 / f0BEL4.5. (4) : Calculate : "f0B-H" = f0BELH-4,286 kHz. "f0B-L" = f0BELL-4,286 kHz.
(1) : Input a 20 mVp-p sine wave whose frequency is sweep into Pin 20. (2) : Connect Pin 20 to GND through 27 k. 3 Bell / Filter Q (3) : Pin 24 is GND. (4) : Observe the frequency response of the Pin 7 output. (5) : Calculate : "QBEL" = (MAX-3dB Band Width) / f0BEL.
(1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. 4 Color Difference Output Amplitude (2) : Measure the R-Y output amplitude at Pin 9, that is, "VRS". (3) : Measure the B-Y output amplitude at Pin 11, that is, "VBS".
5
Color Difference Relative Amplitude
Calculate : "R / B-S" = VRS / VBS. (1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. (2) : Measure the amplitude between Black and Cyan / Red, that is, VCyan / VRed.
6
Linearity
(3) : Measure the amplitude between Black and Yellow / Blue, that is, VYellow / VBlue. (4) : Calculate : "LinR" = VCyan / VRed "LinB" = VYellow / VBlue
(1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. 7 Rising Time (2) : Measure the rising time (from 10% to 90%) between Green and Magenta at Pin 9 / Pin 11, that is, "trR" / "trB". (1) : Input a 200 mVp-p, 2 MHz sine wave into Pin 20. (2) : Increasing the input frequency, measure the frequencies at which demodulated output appears at Pin 9, that is, "CRL", and at which demodulated output disappears at Pin 11, that is, "HBH". (3) : Input a 200 mVp-p, 7 MHz sine wave into Pin 20. (4) : Decreasing the input frequency, measure the frequencies at which demodulated output appears at Pin 11, that is, "CBH", and at which demodulated output disappears at Pin 9, that is, "HRL".
8
Demodulation Hold Range
9
Demodulation Capture Range
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Note Item Test Condition (1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. 10 Killer ON/OFF Level (2) : Decreasing the input amplitude, measure the amplitude at which demodulated outputs disappear at Pin 9 and Pin 11, that is, "eSK". (3) : Increasing the input amplitude from 0 mVp-p, measure the amplitude at which demodulated outputs appear at Pin 9 and Pin 11, that is, "eSC". (1) : Input a 200 mVp-p non-modulated chrome signal into Pin 20. 11 Black Level Offset (2) : Pin 10 and Pin 12 are opened. (3) : Measure the difference between picture period and blanking period at Pin 9 / Pin 11, that is, "ErR" / "ErB". (1) : Connect the external power supply to Pin 13, as shown in the figure. (2) : Apply 4.0 V to Pin 13, and measure the Pin 6 voltage, that is, "V6color". (3) : Apply 2.0 V to Pin 13, and measure the Pin 6 voltage, that is, "V6B / W".
6
12 ID Voltage
Voltmeter V +
(1) : Connect the external power supply to Pin 13, as shown in the figure. (2) : Apply 5.0 V to Pin 13, and measure the Pin 6 current, that is, "I6strongSE". (3) : Apply 4.0 V to Pin 13, and measure the Pin 6 current, that is, "I6SE". (4) : Apply 2.0 V to Pin 13, and measure the Pin 6 current, that is, "I6B / W".
TA1275 BFNG
13 ID Current
4 0.01F
6 15k A Ammeter + 56
TB1309FG
(1) : Input a 200 mVp-p, 15 kHz sine wave into Pin 14 and Pin 16. (2) : No input on Pin 20. 14 System SW Threshold Level (3) : Increasing the Pin 6 voltage from 0 V, measure the voltage at which the 15 kHz sine wave appears at Pin 9 and Pin 11, that is, "V6PIN". (4) : Decreasing the Pin 6 voltage from 4 V, measure the voltage at which the 15 kHz sine wave disappears at Pin 9 and Pin 11, that is, "V6S". (1) : No input on Pin 20. 15 Color Difference Output DC Level (2) : Measure the DC voltage on Pin 9 / Pin 11 when Pin 6 is 4 V, that is, "V9PIN" / "V11PIN". (3) : Measure the DC voltage on Pin 9 / Pin 11 when Pin 6 is 0 V, that is, "V9S" / "V11S". (1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. (2) : Measure the difference between the picture period and the blanking period at Pin 9 when Pin 10 is 5 V / 0 V, that is, ErR+ / ErR-. (3) : Measure the difference between the picture period and the blanking period at Pin 11 when Pin 12 is 5 V / 0 V, that is, ErB+ / ErB-. (4) : Calculate : "ErR+" = ErR+-ErR "ErR-" = ErR--ErR "ErB+" = ErB+-ErB "ErB-" = ErB--ErB
16
R-Y B-Y Black Level Control Characteristics
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TA1275BFNG
Note Item Test Condition (1) : Input a 200 mVp-p, 15 kHz sine wave into Pin 14 and Pin 16. (2) : Supply 4 V to Pin 6. 17 Ext. Color Difference Gain (3) : Measure the respective output amplitudes at Pin 9 and Pin 11: VEXTR and VEXTB. (4) : Calculate : "GEXTR" = VEXTR / 200 mV "GEXTB" = VEXTB / 200 mV
(1) : Input a 75% color bar (200 mVp-p at R ID) into Pin 20. 18 Gate Pulse Width Variable Range (2) : Connecting Pin 13 to GND via 1 k, observe the gate pulse at Pin 13. (3) : Measure the respective gate pulse widths for when Pin 4 is opened and for when it is connected to VCC / GND: "WGP", "WGPVCC" and "WGPGND". (1) : Connect Pin 13 to VCC via 10 k. 19 Y DL Characteristics (2) : Connect Pin 8 to GND. (3) : Measure the delay time between Pin 23 input and Pin 7 output, that is, "tYDL". (1) : Input a sweep signal with sync. (1 Vp-p). (2) : Connect Pin 13 to VCC via 10 k. (3) : Connect Pin 8 to VCC. 20 Y Trap Characteristics (4) : Observing the frequency response at Pin 7, measure the frequency at which the attenuation is maximum, that is, "f0Y5.5"; and measure the attenuation at f0Y5.5 against that at 1 MHz, that is, "GY5.5". (1) : Connect Pin 13 to VCC via 10 k. 21 Y Input Dynamic Range (2) : Increasing the amplitude of the Y signal input into Pin 23, measure the amplitude at which the output signal from Pin 7 begins to be distorted, that is, "DRYS". (3) : Open Pin 13. (4) : Repeat (2), that is, "DRYBW ". (1) : Input a Y signal (picture period amplitude: 0.7 Vp-p) into Pin 23. (2) : Connect Pin 13 to VCC via 10 k. 22 Y Gain (3) : Measure the gain between Pin 23 input and Pin 7 output, that is, "GYS". (4) : Open Pin 13. (5) : Repeat (3), that is, "GYBW ".
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Test Circuit
C13:0.033F R13a:10k A SW13 R13:1k B R14:75 R-Y in C14:0.33F P14 P/N R-Y IN B-Y OUT B-Y out P10 SW10 R10:50k P8 A R-Y out B SW8 P8A P6 R6:15k P5 H/H+V ID SW A SW5 P5A SW6a P4 B R4:33k P22 Jumper SW4 C22:1
+
P13 ID FILTER B-Y BLACK CONT
13
14
C15:0.01 Vcc 5V(Y/C) R-Y BLACK CONT
15
+
R16:75 B-Y in
C15A:33 P15
16
C15:0.33F
P/N B-Y IN
R-Y OUT
TA1275BFNG (SSOP24)
17
N.C.
DL MODE SW
GND
P19
+
19
C19:1F R20:27k SW20 C20:0.01
f0 FILTER
SYSTEM I/O SW
P20 C IN S-LOW PASS SW
20
5
6
21
4
R20A:75 C in
N.C.
A
4.43CW-IN GATE WIDTH
CW in P4A
C4:0.01F
22
BELL f0 FILTER
N.C.
R23:75 Y in C23A:1
+
P23
3
C2a:33
23
Jumper P24 A
Y IN
Vcc 5V (Pulse)
2
C2:0.01 P1 BELL CONT SCP in SCP in
24
C25:100
+
C26:0.01
Vcc(5V)
B
R24:20k
SW24
1
B
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Y out
+
Y OUT BELL MON
18
7
8
9
10
11
12
P12 SW12
R12:50k
TA1275BFNG
Application Circuit
13
ID FILTER
12
0.033F
B-Y BLACK CONT
P/N R-Y IN
B-Y OUT
0.01F Vcc 5V(Y/C) R-Y BLACK CONT
15
+
33F P/N B-Y IN R-Y OUT R-Y out 0.01F 33F 0.01F BELL CONT SCP in SCP in
16
N.C.
TA1275BFNG (SSOP24)
17
DL MODE SW
GND
19
1F
+
f0 FILTER
SYSTEM I/O SW
20
0.01F
C IN S-LOW PASS SW
H/H+V ID SW
5
6
N.C.
4.43CW-IN GATE WIDTH
22
1F
+
BELL f0 FILTER
N.C.
3
24
100F
+
0.01F
The application circuits shown in this document are examples provided for reference purposes only. Thorough evaluation is required in the mass production design phase. By furnishing these examples of application circuits, Toshiba does not grant the use of any industrial property rights.
Vcc(5V)
1
2
+
23
1F
Y IN
Vcc 5V (Pulse)
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CW / System I/O in
21
4
Y out
+
Y OUT BELL MON
18
7
8
9
10
B-Y out
14
11
TA1275BFNG
Outline Drawing
SSOP24-P-300-0.65A Unit: mm
Weight: 0.09 g (typ.)
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TA1275BFNG
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