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BA7652AF

Rohm

Video signal swither/ 1 x 3-channel with clamped-input

Multimedia ICs Video signal swither, 1 × 3-channel with clamped-input BA7652AF The BA7652AF is a video-signal switching...



BA7652AF

Rohm


Octopart Stock #: O-179207

Findchips Stock #: 179207-F

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Description
Multimedia ICs Video signal swither, 1 × 3-channel with clamped-input BA7652AF The BA7652AF is a video-signal switching IC that contains a three-channel clamped-input multiplexer and a built-in mute circuit. The inputs are sync-tip clamped (synchronous edge of the video input signals are aligned to the same voltage), and as the input impedance is
More View extremely large, it is possible to use a small value for the clamp capacitor. [The recommended capacitor is 0.01µF (FZ) ceramic]. Applications • Video cassette recorders and camcorders Features • 1) Small clamp capacitors can be used (ceramic, 3000pF (Min.), 0.01µF (FZ) (recommended)). 2) Low supply voltage operation possible. Supply voltage range is 3.7V to 7.7V. 3) Superimposition used for fast switching speed with low switching noise (70ns. Typ.). 4) Low power consumption (when VCC = 5V, 25mW Typ.). 5) Wide dynamic range (3.1VP-P Typ. for VCC = 5V). 6) Mute function. 7) Excellent frequency characteristics (10MHz, 0dB Typ.). 8) Low interchannel crosstalk ( – 70dB Typ.). 9) Voltage can be applied to the control pins even when VCC is not applied. •Absolute maximum ratings (Ta = 25°C) Parameter Applied voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 9 500∗ – 25 ~ + 75 – 55 ~ + 125 Unit V mW °C °C ∗ When mounted on a 50mm × 50mm board, reduced by 5.0mW for each increase in Ta of 1°C over 25°C. •Recommended operating conditions (Ta = 25°C) Parameter Recommended operating voltage Symbol VCC Limits 4.0 ~ 7.0 Unit V 1 Multimedia ICs BA7652AF •Block diagram IN1 1 8 GND CTLa 2 7 OUT IN2 3 Logic 6 VCC CTLb 4 5 IN3 •Pin descriptions Pin No. 1 2 3 4 5 6 7 8 Name IN1 CTLa IN2 CTLb IN3 VCC OUT GND Input 1 Control input a Input 2 Control input b Input 3 Supply voltage Output GND CC •Control pin truth table Function CTLa L H L H CTLb L L H H OUT IN1 IN2 IN3 MUTE •Electrical characteristics (unless otherwise noted Ta = 25°C and V Parameter Operating voltage Supply current Maximum output level Voltage gain Interchannel crosstalk Frequency characteristic CTL switching voltage Symbol VCC ICC Vom GV Cta Gf VTH L VTH H Min. 3.7 2.7 2.6 – 0.5 — – 3.0 — 2.5 Typ. — 5.0 3.1 0 – 70 0 — — Max. 7.7 8.2 — 0.5 — 1.0 1.0 — = 5.0V) Conditions — — f = 1kHz, THD = 1.0% f = 1MHz, VIN = 1.0VP-P f = 4.43MHz, VIN = 1.0VP-P f = 10MHz / 1MHz, VIN = 1.0VP-P VCC – CTL Threshold Level VTH = CC Unit V mA VP-P dB dB dB V VCC – VF × 20 (V) 45 •Guaranteed design parameters (unless otherwise noted Ta = 25°C and V Parameter Differential gain Differential phase Symbol DG DP Min. — — Typ. 0 0.5 Max. 0.5 1.0 Unit % deg = 5.0V) Conditions VIN = 1.0VP-P standard staircase signal VIN = 1.0VP-P standard staircase signal 2 Multimedia ICs BA7652AF •Input / output circuits Pin No. Pin name DC voltage (VCC = 5V) Input / output impe






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