双极电路 CD1353CP 电视伴音信号处理电路 1. 概述与特点 CD1353CP 是一块电视伴音信号处理中放电路 内部包含中频限幅放大 差动峰值鉴频 直流音 量控制 音频电压放大和功率放大等电路单元 具有外围元件少 调整方便等特点 输出级工作电源 电压范围为 9~18V 其特点如下 当 VCC = 18V 时 PO = 2.4W 当 VCC = 12V 时 PO = 1.2W 封装形式 FDIP14 2. 功能框图与引脚说明 2. 1 功能框图 3 14 4 7 5 电子衰减 偏 置 10 12 + 9 伴音中放 13 噪声控制 FM检波 - + 音频放大 8 - TAB 1 2 6 11 2. 2 引脚说明 引脚 符 号 1 QUAD 2 QUAD 3 DEM 4 OUTQUAD 5 VREG 6 DC 7 INAFP 功 能 引脚 符 号 功 能 鉴频 8 OUTAFP 音频功放输出 鉴频 9 BS 自举 去加重 10 VCC 电源 鉴频输出 11 NF 负反馈 稳压源 12 INSIP 伴音中频输入 退耦 13 INSIP 伴音中频输入 音频功放输入 14 CONVOL 音量控制 无锡华润矽科微电子有限公司 地址 江苏省无锡市梁溪路 14 号 电话 0510-85810118-5506 传真 0510-85810118-3093 邮编 214061 网址 http://www. semico.com.cn 电邮 [email protected] 第 1 页 共 4 页 双极电路 CD1353CP 3. 电特性 3. 1 极限参数 除非另有规定 Tamb= 25 参 数 名 称 符 号 条 件 额 定 值 单 位 电源电压 VCC 20 V 10 脚电流 I10 1 A 5 脚电流 I5 100 mA 输入信号电压 Vi 3 Vpp 0.8 W 1.4 W PD1 功耗 印刷版铜箔 50 PD2 2 50mm , 板厚 1.6mm 工作环境温度 Tamb -20 ~ 75 贮存温度 Tstg -40 ~ 150 3. 2 电特性 除非另有规定 Tamb= 25 参 数 名 称 符 号 中频部分 Rg = 50 V5A 5 端电压 V5B 10 端电流 I10A 10 端电流 I10B 度 检波输出电压 VCC=12V RB = 100 测 试 条 件 fO = 6.5MHz 5 端电压 输入限幅灵敏 3 VIN(LIM) fm = 400Hz 规 范 值 最小 VCC = 18V V14 =0V RB = 330 无信号时 VCC = 18V 无信号时 RB = 330 8.0 8.5 V 7.5 8.0 8.5 V 14 19 24 mA 16 28 35 mA 200 400 uV 的-3dB 全谐波失真度 1 THD1 VI =10mV 调幅抑制比 AMR 最大衰减量 ATTMAX VI =10mV 250 AM m=0.3 fm=400Hz V14 为 1.6V 与 0V 时 4 端输出比 单 位 7.5 VOD (VI =10mV) VI =10mV 最大 f = 25kHz V14 = 1.3V 以上 V14 =0V VOD 典型 360 mV 0.7 % -40 -50 dB -60 -80 dB 接下表 无锡华润矽科微电子有限公司 第 2 页 共 4 页 双极电路 CD1353CP 续上表 参 数 名 称 符 号 频部分 RL = 8 规 范 值 测 试 条 件 最小 典型 最大 41 单 位 Rg =600 电压增益 AV VI =30mV 33 37 输出功率 1 PO1 THD =10% 0.9 1.2 W 输出功率 2 PO2 2.0 2.4 W 全谐波失真度 2 THD2 全谐波失真度 3 THD3 VCC = 18V RB = 330 THD =10% PO = 0.5W RL = 8 VCC = 18V RB = 330 PO = 0.5W RL = 8 dB 0.6 2.0 % 0.5 2.0 % 1.5 4.0 % 全电路 全谐波失真度 4 THD4 PO = 0.5W VI =10mV 4. 测试线路 4. 1 测试线路 IF OUT INAF + + 7 4 11 Vcc=12V + 100u 6 220u 10 0.01u 12 9 + CD1353CP 50 100u 13 + IN SIF 47u + 47u + 47u 8 AF OUT 330u 0.022u TAB 1 2 3 14 5 RL=8 + 0.01u 22k 100u 51p *RB/100 0.01u + 220u 6.8p SW 0.1u 5k *说明 VCC =18V 时 该电阻为 330 无锡华润矽科微电子有限公司 第 3 页 共 4 页 双极电路 CD1353CP 5. 应用线路 RB + 0.015u + 100u 100u Vcc=12V + 100 0.01u 220u 0.047u 4 3 5 7 22k 14 5k 电子衰减 偏 置 0.1u 10 270 9 12 + 伴音中放 13 - + + 噪声控制 音频放大 FM检波 - 8 + 100u 330u 0.022u TAB 1 2 6 10p 11 + + 100u 47u 6. 外形尺寸 无锡华润矽科微电子有限公司 第 4 页 共 4 页 Silicore 2.4W AUDIO AMPLIFIER, SIF AMPLIFIER AND DETECTOR FOR TV SILICON MONOLITHIC BIPOLAR INTEGRATED DIRCUIT DESCRIPTION CD1353CP Outline Drawing The CD1353CP is a silicon monolithic integrated circuit designed for SIF and Audio section in television receivers. This IC has all functions including sound IF Amplifier, FM Detector, DC volu me control circuit, Audio Output amplifier with 2.4W output power and voltage regu lato r. This IC is encapsulated in 14pin dual in-line package with heat tab. FEATURES: z All function s for SIF and audio stage are provided by th is on e-chip IC and this IC will realize reduction of asse mb l y cost as well as reduction of nu mb er of o ther co mponents. z Audio outpu t po wer is controlled by electronic attenuation circuit which operate at DC. Therefore, unnecessary ra diation, oscillation etc. are eliminated . Due to DC control, shielded wire is not required and variable resistor will be placed anywhere required. z Electro nic attenu ato r h as en ou gh attenu ation (Typ.80dB) by the adoption of squelch circuit. In addition, as attenuatio n characteristic is same with resistance change of variable resistor, suitable variab le resistor will be selected easily. z As Peak differential detection method is adop ted for FM detection, outside circuitry can be very simp le easy. z As operation voltage (Vcc) range for output stage is very wide (9 -18V), suitable Vcc can be freely determined for required ou tput level. SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 1/7 Silicore CD1353CP For exampl e: Po =2 .4 W at Vcc=18 V, R L =8 Ω Po =1 .2 W at Vcc=12 V, R L =8 Ω BLOCK DIAGRAM PIN CONNECTION QUAD 1 14 CON AFP QUAD 2 13 INSIF DEM 3 12 IN SIF OUTQUAD 4 11 NF REG 5 10 Vcc DC 6 9 BS INAF 7 8 OUT AFP CD1353CP TAB GND SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 2/7 Silicore CD1353CP PIN DESCRIPTION Pin Description Symbol Pin Description Symbol 1 FM Detector Coil QUAD 8 Sound Po wer Out 2 FM Detector Coil QUAD 9 3 DE Emphasis Capacitor DEM 10 4 SIF Detector Output Bootstrap Capacitor Supply Voltage For Sound Power Stage Feed Back Capacitor 5 Supply Vo ltage For SIF Stage 6 Decoupling Capacitor 7 Sound Po wer Input OUT Q U A D 11 OUT A F P BS Vcc NF REG 12 SIF Input (Hot End) IN S I F DC 13 SIF Input (Cold End) IN S I F IN A F 14 Vo lu me Control CON V O L ABSOLUTE MAXIMUM RATINGS (Ta=25 °C) Characteristic Symbol Value Unit Supply Voltage Pin 10 V10 20 V Supply Current Pin 10 I10 1 A Supply Current Pin 5 I5 100 mA Input Signal Vo ltage Vi 3 Vp-p Power Diss ipation Pd1 0.8(Ta=7 5°C) Free Air W Power Diss ipation Pd2 1.4* W Operating Te mp erature Topt -20 to +75 °C Storage Temp erature Tstg -40 to +150 °C z Printed Circuit copper Area 50×50mm 2 SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 3/7 Silicore CD1353CP ELECTRICAL CHARACTERISTICS (Ta=25±3°C) Characteristic Symbol Test Condition Min Typ Max Unit If Stage (Vcc=12V R B =100Ω Rg=50 Ω V14 ≥1.3 V fo =4 .5MHz f M =400Hz f=±25kHz) Pin 5 Voltage V5A 7.5 8.0 8.5 V Pin 5 Voltage V5B Vcc=18V R B =330Ω 7.5 8.0 8.5 V Pin 10 Current I10A 14 19 24 mA 16 28 35 Vi(li m) No Input Signal Vcc=18V R B =330ΩNo Input Signal V O A F (Vi=10 mVrms)-3 dB Pin 10 Current I10B IF Li miting Vo ltage 200 400 µVrms Detector Ou tput Vo ltage VOD Vi=10 mVr ms 300 360 mVr ms Detector Distortion THD1 0.7 % AM Rejection AMR -40 -50 dB Maximu m Attenuation ATT M A X Vi=10 mVr ms AM MOD 30% f M =400Hz Vi=10 mVr ms V14=0V -60 -80 dB mA Sound Pow er Stage (vcc=12V R B =100Ω R L =8Ω f=400Hz Rg=6 00Ω) Sound Stage Vo ltage Gain Av Vi=30 mVr ms 33 37 Sound Output Power PO1 0.9 1.2 W Sound Output Power PO2 2.0 2.4 W Sound Output Distortion THD2 Sound Output Distortion THD3 THD=10% Vcc=18V R B =330Ω THD=10% Po=0.5W Vcc=18V R B =330Ω Po=0.5W If Stage + Sound Pow er Stage Over All Sound Outp ut THD4 Distortion Reference Data Po=0.5W Vi=10mVr ms 41 dB 0.6 2.0 % 0.5 2.0 % 1.5 4.0 % Pin 10 Current I10 THD.2A=10% 200 210 mA Pin 10 Current I10 THD.2B=10% 270 280 mA Sound Output Power Po 1 Sound Output Power Po 2 Sound Stage Band Width BW THD=3% Vcc=18V R B =330Ω THD=3% -3dB fo=4.5MHz Pin Inpedance Pin 12 IF Input Pin 1 Detector Connect Pin2 Detector Conn ect 1.1 W 2.0 W 50 50k 5 .5MHz 6.0MHz 6.5MHz Hz Unit R C R C R C R C 2 9.5 2 9.4 1.9 9.4 1.9 9.4 kΩ/pF 2.4 6.3 2.4 6.2 2.4 6.1 2.4 6.1 kΩ/pF 11 .5 9 9 8.5 8.5 8.3 7.8 8.1 kΩ/pF SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 4/7 Silicore CD1353CP TEST CIRCUIT AMP S3 V ~ V ~ 0.015uF V ~ GAIN=60dB 47uF 47uF 3 0.01uF 220uF 330uF 12 CD1353CP IF SG 50 G ~ fo=6.5MHz Vcc=12V or 18V A _ 6 10 11 4 7 100uF 8 13 2 1 0.022uF TAB 14 10pF S2 5 9 22K Vcc=12V(RB=100) Vcc=18V(RB=330) V _ V _ 0.1uF 5K DM RL=9 S1 V ~ 100uF 600 S4 0.01uF AF SG G ~ f=400Hz 47uF A C B 100uF 47uF V _ V ~ A ~ RB 220uF UNIT: R: Ω TEST SWITCH SITUATION TABLE Characteristics S1 S2 S3 S4 Characteristics S1 S2 S3 S4 V5A off off C off ATT M A X on off B o ff→on V5B off off C off Av off o ff A off I10A off off C off Po 1 off o ff A off I10B off off C off Po 2 off o ff A off Vi(lim) on off B off THD2 off off A off VOD on off B off THD3 off off A off THD1 on off B off THD4 on off C off AMR on off B off SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 5/7 Silicore CD1353CP APPLICATION CIRCUIT 3 4 7 0.01uF 100 Vcc=12V 220uF 5 14 270 0.1uF 5K 10 CD1353CP 9 12 100uF 8 1 2 330uF 11 6 47uF TAB 10pF 0.022uF 13 100uF 100uF 0.047uF 100uF 0.015uF 22K UNIT: R:Ω SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 6/7 Silicore CD1353CP CHARACTERISTICS CURVES SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 7/7