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| ICs for TV AN7299S Antenna diversity IC for car TV s Overview 0.40.25 0.45 The AN7299S is an antenna diversity IC for car TV. A noise detection circuit and an antenna changeover circuit are integrated on one chip. Unit : mm 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 s Features * Built-in vertical and horizontal synchronizing circuit * Built-in antenna fixing function * It outputs a composite synchronous signal s Applications * Car TVs 0.10.1 0.3 7.20.3 9.40.3 SOP024-P-0375A s Block Diagram 24 23 22 21 20 19 18 17 16 15 14 13 1/5 divider VCO 1st noise amp. Video clamp 2nd noise amp. Noise comparator ANT select switch ANT switch driver ANT choice ANT select control ANT select decoder ANT switch control Sync separater Sync control V-sync separater Phase detector Charge pump Horizontal OSC Vertical OSC 10 11 0.15 0.925 12 1 2 3 4 5 6 7 8 9 2.00.2 15.30.3 1.27 1 AN7299S s Pin Descriptions Pin No. 1 2 3 4 Description Antenna selection level-hold capacitor Sync separation video signal input Horizontal synchronizing signal AFC output Horizontal synchronizing signal oscillation time constant setting 5 6 7 8 9 Horizontal synchronizing signal output Composite synchronizing signal output Vertical synchronizing signal output GND Vertical synchronizing signal separation time constant setting 10 Vertical synchronizing signal oscillation time constant setting 11 Charge pump integral time-constant setting 19 20 21 22 23 24 Pin No. 12 13 14 15 16 17 18 Description ICs for TV VCO oscillation time-constant setting Antenna selection output 4 Antenna selection output 3 Antenna selection output 2 Antenna selection output 1 Power supply Noise comparator level setting /Antenna fixing Noise level hold capacitor Noise comparator input 2nd noise amplifier output Video clamp input 1st noise amplifier output Video signal input s Absolute Maximum Ratings Parameter Supply voltage Supply current Power dissipation *2 *1 Symbol VCC ICC PD Topr Tstg Rating 5.5 25 180 -35 to +85 -55 to +125 Unit V mA mW C C Operating ambient temperature Storage temperature *1 Note) *1 : All items are at Ta = 25C, except for the operating ambient temperature and storage temperature. *2 : Ta = 85C s Recommended Operating Range Parameter Supply voltage Symbol VCC Range 4.5 to 5.5 Unit V 2 ICs for TV s Electrical Characteristics at VCC = 5 V ,Ta = 25C Parameter Quiescent current without load 1st amplifier voltage gain 1st amplifier input clamp voltage Symbol ISCC AN1 VCL1 AN2 VCL2 VNOB2 INHB INCB INRB AC VLOB ILOB VSCL ISCN IVH VVSON IVSN IVSP VVON VVSW VVLON IV Conditions VIN = 10 mVPP, f = 10 kHz Pin 24 DC voltage Pin 23 DC voltage VIN = 10 mV[p-p], f = 10 kHz, at 2nd amp. active Pin 22 DC voltage at 2nd amp. active Pin 21 DC voltage at 2nd amp. active Pin 19 DC current Pin 20 DC current Pin 18 DC current VIN = 50 mV[p-p], f = 10 kHz, at input amp. active Pin 1 DC voltage at input amp. active Pin 1 DC voltage at input amp. non-active Pin 2 DC voltage Pin 2 DC current when pin 6 becomes low to high Pin 6 current, when pin 6 voltage becomes lower than 0.5 V Applied voltage to pin 9 when pin 7 becomes low to high RSET = 100 k, pin 9 DC current RSET = 10 k, pin 9 DC current Applied voltage to pin 10 when pin 7 becomes low to high Difference between pin 10 DC voltage and VVON high to low Applied voltage to pin 10 when pin 7 becomes low to high Pin 7 current, when pin 7 voltage becomes 0.5 V or less Min 8.5 15.3 1.87 2.11 16.3 1.96 0.78 40.0 Typ 11.9 17.0 2.00 3.07 17.5 2.11 1.51 AN7299S Max 17.7 18.2 2.15 3.86 18.5 2.29 2.10 Unit mA dB V V dB V V nA nA nA dB V nA V A mA V A A V V V mA 1st amplifier output bias voltage VNOB1 2nd amplifier voltage gain 2nd amplifier input clamp voltage 2nd amplifier output bias voltage Noise hold input bias current Noise comparator input bias current Noise level setting input bias current Antenna input amplifier voltage gain Level hold output bias voltage Level hold output bias current Sync separation input clamp voltage Sync separation comparator on-state current Composite sync separation output sink current Vertical sync separation block on-state voltage Vertical synchronization time constant sink current Vertical synchronization time constant source current Vertical synchronizing oscillation block on-state voltage Vertical synchronizing oscillation block schmidt voltage Vertical synchronizing oscillation block on-state voltage Vertical synchronization output sink current 110.0 240.0 200.0 426.0 820.0 350.0 548.0 950.0 4.5 0.94 20.0 2.92 93.0 1.0 3.94 8.82 5.5 1.43 56.4 3.13 6.4 1.91 100.0 3.32 116.9 149.3 5.0 4.17 4.40 12.19 17.71 42.57 51.14 62.64 2.78 0.83 2.47 1.0 2.94 0.90 2.65 5.0 3.15 1.01 2.79 3 AN7299S s Electrical Characteristics at VCC = 5 V ,Ta = 25C Parameter Horizontal synchronizing oscillation block on-state voltage Horizontal synchronizing oscillation block schmidt voltage AFC sink current AFC source current Horizontal synchronization sink current Antenna switch output sink current VCO time constant sink current VCO time constant source current Charge pump sink current Charge pump source current Symbol VHON VHSW IHAN IHAP IH IAS IVCN IVCP ICCN ICCP Conditions Applied voltage to pin 4 when pin 5 becomes low to high Applied voltage to pin 4 when Pin 5 becomes high to low V4 = VL, pin 3 DC current V4 = VH, Pin 3 DC current Pin 5 current, when pin 5 voltage becomes under 0.5 V Antenna selection output pin on-state time DC current V12 = 1.5 V, pin 12 current V12 = 4 V, pin 12 current Min 2.80 0.82 Typ 3.00 0.94 ICs for TV Max 3.18 1.05 Unit V V A A mA mA A A A A 127.2 160.0 206.0 124.1 158.0 206.6 1.0 10.0 5.0 30.0 81.40 115.0 166.3 81.40 114.8 166.3 Pin 11 current after test signal 1 input 80.39 101.7 138.2 Pin 11 current after test signal 2 input 80.39 108.3 138.2 s Application System Example Antenna changeover Diversity control AN7299S Tuner SIF/VIF Sound multiplex noise canceler Sound signal control Sound output Video signal processing Video color signal processing Chroma signal output Y driver Control circuit X driver LCD panel 4 |
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