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M51326P
Analog switch
REJ03F0079-0100Z Rev.1.0 Sep.22.2003
Description
The M51326P is a semiconductor integrated circuit for use as an analog switch in image-handling equipment. The IC incorporates two audio switches, one with two and one with three inputs, and one video switch with two inputs. Each switch is independently controllable.
Features
* Built-in analog switches for use with video signals and stereo audio signals * Wide video-switch bandwidth: DC to 10 MHz * Good crosstalk characteristics (for video): 55 dB (typ.) @5 MHz
Applications
* Video equipment
Recommended operating condition
* Power-supply-voltage range: 5 to 14 V * Rated power-supply voltage: 9 V, 12 V
Block diagram
SOUND (1) INPUTS 1 14 2 15 3 16 SOUND (2) INPUTS 1 10 2 9 VIDEO INPUTS 1 5 2 3
2 VCC S1 S2 S3 11 DECOUPLING
Gv = 0 dB
Gv = 0 dB
Gv = 0 dB
7 GND
1 SOUND (1) OUTPUT
6 SOUND (1) CONTROL INPUT
8 SOUND (2) OUTPUT
13 SOUND (2) CONTROL INPUT
12 VIDEO OUTPUT
4 VIDEO CONTROL INPUT
Rev.1.0, Sep.22.2003, page 1 of 13
M51326P
Pin Configuration
SOUND (1) OUTPUT VCC VIDEO INPUT2 VIDEO CONTROL INPUT VIDEO INPUT1 SOUND (1) CONTROL INPUT GND SOUND (2) OUTPUT 1 2 3 16 3 15 2 14 1 SOUND (1) INPUTS
M51326P
4 5 6 7 8
13
SOUND (2) CONTROL INPUT
12 VIDEO OUTPUT 11 DECOUPLING 10 1 9 2 SOUND (2) INPUTS
Package 16P4
Absolute maximum ratings
(unless otherwise noted, Ta = 25C, Vcc = 12 V)
Symbol Vcc VIS VIC Pd K Topr Tstg Item Power-supply voltage Input signal voltage Input control voltage Power dissipation Thermal derating Ambient operating temperature Storage temperature Ratings 14 6 Vcc 1.25 1.25 -20 to +75 -40 to +125 Unit V V V W mW / C C C
Electrical characteristics
(unless otherwise noted, Ta = 25C, Vcc = 12 V)
Symbol Icc VIDC VODC Item Circuit current Input bias voltage Output bias voltage Output DC offset voltage Control-pin threshold voltage Voltage gain Total harmonic distortion Output noise voltage Crosstalk Measured condition Limits Min. - 3.8 3.0 - 7.0 3.0 1.7 -0.5 - - - 65 45 Typ. 28 4.2 3.6 15 8.0 4.0 2.1 -0.1 0.02 3 0.5 80 50 Max. 36 4.6 4.2 100 9.0 5.0 2.5 - 0.2 50 1.0 - - mA V V mV V V V dB % Vrms mVrms dB Unit
VODC
VICH VICL VIC Gv THD VN CT
For audio (1) (pin 6 tri - state input) For audio (1) (pin 6 tri - state input) For audio (2) and images (pins 4, 13) f = 1 kHz, For audio, f = 1 kHz, Vo = 1 Vrms For audio, Rg = 600 , bandwidth = 15 kHz For video, Rg = 75 , bandwidth = 10 MHz f = 1 kHz (for audio) f = 5 MHz (for video)
Rev.1.0, Sep.22.2003, page 2 of 13
M51326P
Switching mode
SOUND (1) CONTROL INPUT 6
1 SOUND (1) INPUT 2 3
14 15 16
1
Gv = 0 dB
2 3 S1 1 SOUND (2) OUTPUT
1 SOUND (2) INPUT 2
10 9
1 2
Gv = 0 dB
S2 8 SOUND (2) OUTPUT
1 VIDEO INPUT 2
5 3
1 S3 2
Gv = 0 dB
VIDEO 12 OUTPUT
4 VIDEO CONTROL INPUT
13 SOUND (2) CONTROL INPUT
Selection of switch settings
Control input* H M L Switch number S1 1 2 3 S2 1 (Note) 2 S3 1 (Note) 2
Note: connect to Vcc or GND
Control input voltage (pin 6)
Control input H M L Vcc 9V 7.2 to 9 V 4.2 to 4.8 V 0 to 1.8 V 12 V 9.2 to 12 V 5.2 to 6.8 V 0 to 2.8 V
Control input voltage (pins 4, 13)
Control input H L Vcc 9V 2.7 to 9 V 0 to 1.5 V 12 V 2.7 to 12 V 0 to 1.5 V
Rev.1.0, Sep.22.2003, page 3 of 13
M51326P
Measurement circuit
(unless otherwise noted, Ta = 25C, Vcc = 12 V) Measurement circuit for circuit current ICC, input bias voltage VIDC, output bias voltage VODC
V12 V16 V15 V14 V V10 V V V9
V
V
V
16
15
14
13
12
11
10
9
M51326P
1 ICC VCC 12V mA
2
3
4
5
6
7
8
V V1
V V3
V V5
V V8
Measurement circuit output DC - offset voltage
V12 1 2 SW2 V
16
15
14
13
12
11
10
9
M51326P
1
2
3
4
5
6
7
8
V V1
1 2 SW3
1 2 SW1 V V8
VCC 12V
VODC=Vmax-Vmin
Video
: DC voltages on V12 are measured while switch 1 is at setting 2 and switch 2 is at setting 2, before and after switch 3 is turned to setting 1 or 2. Sound (1): DC voltages on V1 are measured while switch 2 is at setting 2 and switch 3 is at setting 2, and switch 3 is turned to setting 1, 2, or 3. Sound (2): DC voltages on V8 are measured while switch 1 is at setting 2 and switch 3 is at setting 2, before and after switch 2 is turned from to setting 1or 2.
Rev.1.0, Sep.22.2003, page 4 of 13
M51326P Measurement circuit for control - pin threshold - voltage values
1 VIN f=1kHz 1 16 15 14 1 13 12 11 10 V13 10 0.1 VIN f=1kHz
V VO12
1 9
M51326P
1 VCC=12V 1 VO1 V 10
2
3
4
5
6
7
8
1 0.1 V4 V6 VIN f=1kHz
1 V VO8
Units Resistance : Capacitance : F
Rev.1.0, Sep.22.2003, page 5 of 13
M51326P Sound (1) measuring the control-pin threshold-voltage value: Firstly, DC voltage V6 is increased from 3 V to 5 V. Here, we take VICL as the V6 value at which the AC component in the output waveform from pin 1 is turned off. Then, DC voltage V6 is increased from 7 V to 9 V. Here, we take VICH as the V6 value at which the AC component in the output waveform from pin 1 is turned on .
AC components Pin 1 ON AC output waveform OFF ON
VICL
VICH V6
DC voltage
Sound (2) measuring the control-pin threshold-value voltage: DC voltage V13 is increased from 1 V to 3 V. Here, we take the V13 value at which the AC component in the output waveform from pin 8 is turned on as VIC.
AC components Pin 8
OFF ON
AC output waveform
VIC V13
DC voltage
Measuring the image control pin threshold value voltage: DC voltage V4 is increased from 1 V to 3 V. This time, we take the V14 value at which the AC component in the output waveform from pin 12 is turned on as VIC.
AC components Pin 12
OFF ON
AC output waveform
VIC V4
DC voltage
Rev.1.0, Sep.22.2003, page 6 of 13
M51326P Measurement circuit for crosstalk and total harmonic distortion rate (switches for audio)
S4 1 2 3 600 SG 1kHz Vin=1Vrms 16 600 600 10 1 15 14 1 13 12 11 0.1 1 10 9 600 1 1 1 S3 2 600 SG 1kHz Vin=1Vrms
S1
M51326P
1
2
3
4
5
6
7
8
1
1
1
1
VO, THD V
V VO, THD
1 0.1 VCC=12V 10 2 3
S2
Units Resistance : Capacitance : F
Relation between the switch states and the monitor output
Switch state S1 1 2 3 S2 1 2,3 2 1,3 3 1,2 Pin 1 output Vos, THD Voc Vos,THD Voc Vos,THD Voc
Switch state S3 1 2 Crosstalk: CT = 20log (Vos/Voc) (dB) Voltage gain: GV = 20log (Vos/Vin) (dB) S4 1 2 1 2 Pin 8 output VOC VOC VOC VOC, THD
Rev.1.0, Sep.22.2003, page 7 of 13
M51326P
Measurement circuit for crosstalk and voltage gain (video switch)
1 10 0.1 V VO
1 16
1 15
1 14 13 12 11 10
1 9
1
M51326P
1
2
3
4
5
6
7
8
VCC=12V 0.1 10 1 1 1 S2 S1 2 75 75 SG 1kHz Vin=1Vrms
Units Resistance : Capacitance : F
Switch state S1 1 2 Crosstalk: CT = 20log (Vos/Voc) (dB) Voltage gain: GV = 20log (Vos/Vin) (dB) S2 1 2 1 2
Pin 12 output Vos Voc Voc Vos
Rev.1.0, Sep.22.2003, page 8 of 13
M51326P
Measurement circuit for output noise voltage
1
600 1 LPF2 600 1 10 600 16 15 14 13 12 11 10 9 0.1 1 1 600 600 1 V VN12
M51326P
1 1 LPF1
2
3 1 75
4
5 1 75
6
7 1
8
LPF1
V VN1
V VN8
0.1
10
LPF1: Band 15 kHz LPF2: Band 10 MHz
VCC=12V
Units Resistance : Capacitance : F
Rev.1.0, Sep.22.2003, page 9 of 13
M51326P
Characteristic curves
(unless otherwise noted, Ta = 25C)
Thermal derating curve (maximum rating) 2.0
Allowable power dissipation Pd (W)
Circuit current vs. power-supply voltage 80
Circuit current Icc (mA)
1.6
60
1.2
40
0.8
0.4
20
0
0
25
50
75
100
125
0
5
7.5
10
12.5
14 15
Ambient temperature Ta (C)
Power-supply voltage Vcc (Vrms)
Voltage gain vs. frequency (audio) Vcc=12V CIN-1F
Voltage gain Gv (dB) Total harmonic distortion rate THD (%)
5
1.0 7 5 3
Total harmonic distortion rate vs. output voltage (audio)
0
0.1 7 5 3 f=1kHz 0.01 7 5 3
-5 100
3 5 7 1k
3 5 7 10k
3 5 7100k
0.001 0.01
3 5 7 0.1
3 5 7 1.0
3 5 7 10
Frequency f (Hz)
Output voltage Vo (Vrms)
Total harmonic distortion rate THD (%)
Output DC voltage VODC (V)
1.0 7 5 3
Total harmonic distortion rate vs. frequency (audio) Vo=1Vrms
Input DC voltage vs. output DC voltage (audio) 10
8
0.1 7 5 3
Vcc=9V
6
Vcc=12V 0.01 7 5 3
4
2
0.001 100
3 5 7 1k
3 5 7 10k
3 5 7 100k
0
0
2
4
6
8
10
Frequency f (Hz)
Input DC voltage VIN DC (V)
Rev.1.0, Sep.22.2003, page 10 of 13
M51326P
Output noise voltage vs. signal source resistance (audio)
Crosstalk vs. frequency (audio)
100
90
Between (14) and (16)
Output noise voltage VN (Vrms)
100 7 5 3
80
Crosstalk CF (dB)
10 7 5 3
70
Between (14) and (15), (15) and (16)
60
Pin No. is audio (1)
1 7 5 3
50 1k
3 5 710k
3 5 7100k
3 5 7 1M
0.1 100
3 5 7 1k
3 5 7 10k
3 5 7100k
Frequency f (Hz)
Signal source resistance Rg ()
Voltage gain vs. frequency (video)
Total harmonic distortion rate THD (%)
Total harmonic distortion vs. output voltage (audio)
5
10 7 5 3
Voltage gain Gv (dB)
0
1 7 5 3
0.1 7 5 3
f=10kHz
-5 100k
3 5 7 1k
3 5 7 1M
3 5 7 10M
0.01 0.01
3 5 7 0.1
3 57 1
3 5 7 10
Frequency f (Hz)
Output voltage Vo (Vrms)
Crosstalk vs. frequency (video)
90
80
Between (3) and (5)
70
Crosstalk CT (dB)
60
50
40 10k
3 57 100k
3 5 7 1M
3 5 710M
Frequency f (Hz)
Rev.1.0, Sep.22.2003, page 11 of 13
M51326P
Application Example
VCC S1 1 2 3 2 1 S2 10 0.1
SOUND (1) OUTPUT
1 1 16
10 3 SOUND (1) INPUT
2
15 10
2
2 VIDEO INPUT 1 75 1 75 1
3
14
1
M51326P
4
13 1 12 VIDEO OUTPUT
5
6
11 10
7 SOUND (2) OUTPUT 1 8
10 10 9
1 SOUND (1) INPUT 2
Units Resistance : Capacitance : F
Precautions on usage Both the video and audio outputs are emitter follower. Accordingly, when the external wiring is long or a capacitive load is added, add a resistor with a value of the tens of ohms order in series near the position of the output pin.
Rev.1.0, Sep.22.2003, page 12 of 13
M51326P
16P4
JEDEC Code - Weight(g) 1.0 Lead Material Alloy 42/Cu Alloy
MMP
Plastic 16pin 300mil DIP
Package Dimension
EIAJ Package Code DIP16-P-300-2.54
E
1
8
D
Symbol
L
e
b1
b
b2
A1
SEATING PLANE
A
A2
A A1 A2 b b1 b2 c D E e e1 L
Dimension in Millimeters Min Nom Max - 4.5 - - 0.51 - - - 3.3 0.4 0.5 0.59 1.4 1.5 1.8 0.9 1.0 1.3 0.22 0.27 0.34 18.8 19.0 19.2 6.15 6.3 6.45 - - 2.5 - - 7.62 - - 3.0 0 - 15
e1
Rev.1.0, Sep.22.2003, page 13 of 13
16 9
c
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