ROHM Semiconductor BA7645N
The BA7645N is a four-channel analog multiplexer with mute, designed for use in video cassette recorders. It features a large dynamic range, and wide operating frequency range, and has sync-tip inputs which are ideal for switching video signals.APPLICATIONS
● Video cassette recorders and televisionsFEATURES
● 1) 4-input / 1-output switches. 2) Built-in mute. 3) Sync-tip inputs. 4) Wide operating supply voltage range (4.5V to 13.0V). 5) Low power consumption (48mW Typ.). 6) Excellent frequency characteristics (10MHz, 0dB Typ.). 7) Wide dynamic range (3.5VP-P Typ.). 8) Low interchannel crosstalk ( – 65dB Typ., f = 4.43MHz).●Absolute maximum ratings (Ta = 25°C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limit 13.5 850∗ – 25 ~ + 75 – 55 ~ + 125 Unit V mW °C °C ∗ Reduced by 8.5mW for each increase in Ta of 1°C over 25°C.
●Block diagram MUTE
●Truth table CTLA L (OPEN) L (OPEN) H LOGIC CTLB L (OPEN) H L (OPEN) H CTLC L (OPEN) L (OPEN) L (OPEN) L (OPEN) H OUT IN1 IN2 IN3 IN4 MUTE H ∗ 1 2 3 4 5 6 7 8 9 10 ∗ ∗ Either "L (open)" or "H". CTLC CTLA CTLB IN2 IN3 IN4 IN1 GND VCC VOUT 1 Multimedia ICs BA7645N
●Equivalent circuits CLAMP INPUT Input bias current 1µA [Typ...