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| MITSUMI Sync Separator with AFC LVA519 Sync Separator with AFC Monolithic IC LVA519 Outline This is a sync separator IC with AFC. Stable operation even in a weak electric field is made possible with the built-in AFC circuit. A regulator also is built in, providing stable operation relative to power supply and temperature fluctuations. Features 1. 2. 3. 4. Supports AFC (horizontal sync signal) AFC OFF function Horizontal and vertical sync signal output pins Power supply voltage 4.7V~5.3V Package SIP-9A (LVA519S) SOP-14A (LVA519F) Applications 1. TV 2. VCR 3. Other video equipment Equivalent Circuit Diagram SIP-9A SOP-14A MITSUMI Sync Separator with AFC LVA519 Pin Description Pin no. 1 (LVA519S) Function Video signal input Internal equivalent circuit diagram Pin name VIDEO IN 2 VCO Free run frequency setting 3 PC OUT Phase comparison output 4 CFU Integrates composite signal and inputs to vertical sync playback circuit MITSUMI Sync Separator with AFC LVA519 5 6 GND COSC GND Free run frequency oscillation circuit 7 VSYNC Vertical sync signal output 8 HSYNC Horizontal sync signal output 9 VCC Power supply Pin Description Pin no. 1 2 (LVA519F) Function NC Internal equivalent circuit diagram Pin name VIDEO IN Video signal input 3 VCO Free run frequency setting MITSUMI Sync Separator with AFC LVA519 4 PC OUT Phase comparison output 5 CFU Integrates composite signal and inputs to vertical sync playback circuit 6 7 8 GND COSC NC GND Free run frequency oscillation circuit 9 10 VSYNC NC Vertical sync signal output 11 HSYNC Horizontal sync signal output 12 13 14 VCC Power supply NC NC MITSUMI Sync Separator with AFC LVA519 Absolute Maximum Ratings Item Storage temperature Operating temperature Power supply voltage Allowable loss (Ta=25C) Symbol TSTG TOPR VCC max. Pd Ratings -40~+125 -2~+75 7 470 (SIP-9A) 350 (SOP-14A) Units C C V mW Recommended Operating Conditions Item Recommended power supply voltage range Recommended input signal voltage Symbol VCC VIN (Ta=25C) Min. 4.7 0.8 Typ. 5.0 2.0 Max. 5.3 3.2 Units V VP-P Electrical Characteristics Item Consumption current Horizontal sync output (H) Horizontal sync output (L) Vertical sync output (H) Vertical sync output (L) (Except where noted otherwise, Ta=25C, VCC=5.0V, VIN=2.0VP-P) Symbol Id VHH VHL VVH VVL fO fO1 fO2 fC fL td PW (H) (L) VthH VthL VSEPA RAFC Measurement conditions Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit Refer to Measuring Circuit 1.0 1.9 0.3 3.5 1.9 1.1 80 2.7 14.5 300 400 1.3 2.5 0.7 5.0 2.1 1.3 115 4.0 1.1 6.5 2.3 1.5 170 6.0 4.9 4.9 Min. Typ. Max. Units 7.0 5.0 0.2 5.0 0.2 0.4 17.0 0.4 10 mA V V V V kHz %/V ppm/V kHz kHz S S V V mV k Free-running frequency setting range Power supply fluctuation of free-running frequency Free-running frequency temperature coefficient Capture range Capture range Lock range AFC output delay time AFC output pulse width Schmitt trigger threshold Sync separation level AFC off resistance MITSUMI Sync Separator with AFC LVA519 Measuring Procedures Item Consumption current Horizontal sync output Vertical sync output (H) (L) (H) (L) Symbol Id VHH VHL VVH VVL fO fO1 fO2 fC fL td Pw VtHH VtHL (Except where noted otherwise, Ta=25C, VCC=5.0V, VIN=2.0VP-P) Switch state S1 B B B B B A A A B/A B/A A/B A/B B S2 B A A A A B B B A A A A A S3 A B B B B B B B B B B B B S4 A B B B B B B B B B B B B S5 A A A A A A A A A A A A A Measuring Procedures Connect a DC ammeter to VCC pin. Input standard color bar 2VP-P. Measure at TP5 Input standard color bar 2VP-P. Measure at TP4. Adjust VR1 and measure frequency at TP5. With fo at 15.73kHz, vary Vcc between 4.0V~6.0V and measure at TP5. With fo at 15.73kHz, vary temperature between -20C and 80C and measure at TP5. Input standard color bar 2VP-P and measure at TP1 and TP5. 1 Free-running frequency setting range Power supply fluctuation of free-running frequency Free-running frequency temperature coefficient Capture range Lock range AFC output delay time AFC output pulse width Schmitt trigger threshold (H) (L) * * Input standard color bar 2VP-P and measure at TP2 and TP5. 2 * Input standard color bar 2VP-P and measure at TP5. 2 * Measure at TP3 and TP4. 3 * Input standard color bar 2VP-P and measure at TP1 and TP5. 1 Measuring Procedures Item Symbol (Except where noted otherwise, Ta=25C, VCC=5.0V, VIN=2.0VP-P) Switch state S1 B S2 A S3 B S4 B S5 A Measuring Procedures Raise horizontal sync signal level of input standard Sync separation level VSEPA color bar 2VP-P and measure the level when a signal is output at TP5. With Fo at 15.73kHz, vary Iafc, and determine according to Iafc value when TP5 output signal switches to a composite signal, and TP6 voltage V6. RAFC=V6/IA1 AFC switching resistance RAFC B A B B B Notes: 1 Capture range (fc) * 15.73KHz fc1 fc2 Vary VR1 between max min and min max with SW1, and for each lock make SW1 A and measure at TP5. Data : fC1 and fC2 smaller value With SW1 at B and locked, vary VR1 and when the lock is released, make SW1 A and measure at TP5. fL2 Lock range (fL) 15.73KHz fL1 Data : fL1 and fL2 smaller value MITSUMI Sync Separator with AFC LVA519 *2 TP2 50 100 TP5 Pw 50 td output * AFCSW1 at delay time (td) output to 15.73kHz. Then set SW1 to B Set A and adjust TP5 and measure td from TP2 and TP5 waveforms. (specified at 50% of sync signal amplitude) output * AFCSW1 at pulse width (Pw) output to 15.73kHz. Then set SW1 to B Set A and adjust TP5 and measure Pw from TP5 waveform. (specified at 50% of sync signal amplitude) *3 TP4 VthH VthL TP3 * Schmidt trigger threshold (VthH) (VthL) Measure VthH and VthL at TP3 and TP4. Measuring Circuit SIP-9A SOP-14A MITSUMI Sync Separator with AFC LVA519 Application Circuits SIP-9A SOP-14A |
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