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YD2915
TV VIF & SIF & DEFLECTION SYSTEM -- YD2915
DESCRIPTION
The YD2915 is a monolithic integrated circuit containing all stage for the VIF, SIF and deflection of television receivers.
FEATURES
*IF Amplifier with IF AGC *Video Amplifier, Video Detector *Noise Canceller, Forward RF AGC *Tuner AFT, Amplifier *Sound detector, sync separation *Vertical oscillation trigger and driver *Horizontal oscillation driver and AFC
BLOCK DIAGRAM 28 27 26 25 24 23 22 21 20 19 GND Vcc1 18 17 16 15 Vcc2
V.DIV V.OSC SYNC H.AFC SEP. PIF AMP RF AGC 1 2 3 VIDEO DET
H.OSC H.DIV
IF NOISE VIDEO AGC CUT AMP SIF AMPFM DET 4 5 6 7 8 9 10 11
TUNER AFT 12 13 14
WuXi YouDa Electronics Co., Ltd
E-3-A6,Li Yuan Economic Development Zone,Wuxi Jiangsu China Tel: 86-510-5166655 Fax: 86-510-5169922 SHENZHEN OFFICE Tel 86-755-83740369 13823533350 Fax 86-755-83741418 Ver 2.0 1 of 6 2003-04-13 Add:
YD2915 ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply Voltage Supply Current (Tamb=25ae ) MIN MAX 12 85 15 0 0 0 0 -10 -0.6 0 -4 -20 -55 5.5 4.2 0.3 0.6 10 10 1100 70 125 mA V UNIT V mA
SYMBOL VCC(20) ICC(20) ICC(16) V2,V3,V4,V24 V8 V13 V17 I5,I6,I11,I23,I26
Circuit Voltage
Circuit Current
I19 I25 I17 PD Topr Tstg
Power Dissipation(Tamb=70ae ) Operating Temperature Storage Temperature
W ae ae
ELECTRICAL CHARATERISTICS (Tamb=25aeVCC1=10V, unless otherwise specified) ,
VIDEO SECTION PARAMETER Video Output Voltage (Pin5) Input Sensitivity Maximum Input Sync. Peak Voltage Noise Inverter Output Level (Pin5) Noise Inverter Capture Level (Pin5) AGC Range S/N Ratio Differential Gain Differential Phase (fp: 38MHz, AGC: AGC, AM: 87.5%, 1kHz) SYMBOL V o VSVF VIM VSYN VTB TEST CONDITIONS AM; AGC; fp; Vi=10mV AM; AGC; fp; VOVFP (c)-3dB : P AM; AGC; fp; VO >0dB fp; V1=20mV VAGC=5.35V; fp=38A 10MHz Vi=20mV VAGC=5.35V; fp=38A 10MHz Vi=20mV AM; AGC; fp VOVF(pp)=1.8~2.4v fp ; Vi=10mV AM; fp; APL=50% Vi=1.0mV AM; fp; APL=50% Vi=1.0mV 178 1.9 1.0 MIN 1.8 TYP 2.1 316 315 2.3 1.4 MAX 2.6 565 2.7 1.8 UNIT V |I V mV V V
VKB / AGC S/N DG DP
3.0
3.4
3.8
V
60 51
63 56 4 3 8 6
dB dB % DEG
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YD2915
PARAMETER Video Frequency Characteristics .Sound IF Output Input Resistor Input Capacitor Output Resistor RF AGC Gain AFT Sensitivity SYMBOL TEST CONDITIONS VAGC=5.35V G1 38MHz 10Mv G2 37.9-28MHz, 1Mv G1 38MHz; G2 31.5MHz P/S=20dB fp; (Between Pin1 and Pin28) fp; (Between Pin1 and Pin28) f=500KHz; Vi=20mV f=10KHz I=3.15mV V fp=38A 1MHz, Vi=20mV MIN TYP MAX UNIT
DWV
4.5
6.0
8.0
MHz
VOSIF Ri Ci ZOVF ARFAGC SAFT
100 0.8 3.0 30 37 12.5
160 1.0 4.0 50 42 25
225 1.2 5.0 150 48 35
mV k| pF | dB kHz/V
SOUND SECTION (fo 6.5MHz FM/fm 1000Hz; | 50kHz) f=A PARAMETER Sound Det. Output Input Limit Voltage Total Harmonic Distortion AM Rejection Ratio Input Resistor Input Capacitor Detector Input Resistor Detector Input Capacitor SYMBOL VOD VIN(LIM) THD AMR Ri Ci RID CID TEST CONDITIONS fo; FM; | Vi=100mV f; fo; FM; | -3dB point f; fo; FM; | Vi=100mV f; fo; FM; | Vi=100mV f; AM m=0.3 fo fo fo; Pin9 fo; Pin9 fo; Pin10 fo; Pin10 37 6 1.3 2.0 2.1 50 2.9 MIN 280 280 0.6 45 20 4.3 3.0 5.1 200 3.4 3.9 100 7.3 4.0 8.1 TYP MAX 800 450 1.0 UNIT mV |I V % dB k| pF k| pF k| pF
Detector Input RID Resistor Detector Input CID Capacitor DEFLECTION SECTION PARAMETER Vertical Free-Running Frequency Vertical OSC Pulse Width SYMBOL fv
TEST CONDITIONS Pin26
MIN 47
TYP 50
MAX 53
UNIT Hz
tWH
470
650
830
|I S
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YD2915
Vertical OSC Start Supply Voltage Vertical Full in Range Horizontal OSC Frequency Horizontal OSC Pulse Width Horizontal OSC Start Supply Voltage Horizontal Full in Range Horizontal OSC Control Sensitivity Phase Det. Sensitivity Sync Separation Horizontal Pulse Width 1 Sync Separation Horizontal Pulse Width 2 Horizontal AFC Horizontal Pulse Width 1 Horizontal AFC Horizontal Pulse Width 2 Vsv fvo=40~60Hz VO(PP)>0.7V VCC1 =12V, 8V |VO /VCC=fVO(12V) -fVO(8V) f 4.9 6 V
fv VCC 1
fH tWH VSH
0
1.0
1.3
Hz
15.0 21 fHD =10-20Hz VO(PP)>1.0V VCC2 =12V, 8V |H /VCC=fH(12V) -fH(8V) f / I1=100|I input Variable A OSC. Frequency Variable Video Input VIV(PP)=2V R(|I )=3.14k| Video input VIV(PP)=2.5V APL=50% Video input VIV(PP)=1.0V APL=50% Video input VIV(PP)=2.5V APL=50% Video input VIV(PP)=1.0V APL=50%
15.75 24
16.25 27 5
KHz |I S V
f H VCC 2
|A |I p
0
50
100
Hz
73 13.5
81 16.5
89 19.5
Hz/|I A |I A/|I S |I S
tSYN.1
4.8
5.1
5.4
tSYN.2
4.9
5.2
5.5
|I S
tSYN.3
4.8
5.1
5.4
|I S
tSYN.4
4.9
5.2
5.5
|I S
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YD2915 H.Output Tuner AFC Output
T201
APPLICATION CIRCUIT
XLC6.5 Z701 R701 300k Z702 XLC4.43
HTV3201 YD2915 28 27 26 25 24 23 22 21 20 19 18 17 16 15 R210 3.3K
6 C303 0.047 R302 R301 680 10 C210 R213 3.3|I 330 130K C210 R214 680K R213 680K
T301 HTV3217
8
9
7
R411 22K C415 0.027
R703 R702C306 100 100 C303 0.022 R303 2.7K 3.3|I C304 C302 47
10 11 12 13 14
C418 47|I 4700 10K RP401 R404 C416 1|I 1.2K C423 C411 0.01 0.47|I R406 180 C410 470|I C412 C413 RF AGC Output C304 10|I R314 100
C417
R406 0.013600 22 C301 1|I R302 RP301 33K 30K R301 330K
C208 0.01 C205 R212 1K C206 RP102 1000 C207 R218 1k R220 0.01 4.7K 1000 3K R209 12k R210 PR201 4.7K R208 4.7K C202 R217 3.9K C203 1000 6.8K R211 R206 R205 1000 R204 18K R219 150 220 360 R203 R202 22K C201 0.01 R201 1000 100 8.2K C204 UHF 1
WuXi YouDa Electronics Co ., Ltd
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5
6
Z201 LBN-388
+B
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YD2915 OUTLINE DRAWING
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