VCA8500 Datasheet, PDF (11/15 Pages) Texas Instruments – 8-Channel, Ultra-Low Power Variable Gain Amplifier with Low-Noise Pre-Amp

VCA8500
www.ti.com
SBOS390 – JANUARY 2008
DBn:4
(MSB)
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Table 9. CW Switch Matrix Control for Each Channel
DBn:3
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
DBn:2
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
DBn:1
(LSB)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
LNA Input Channel Directed To:
Output CW0
Output CW1
Output CW2
Output CW3
Output CW4
Output CW5
Output CW6
Output CW7
Output CW8
Output CW9
Connected to AVDD1
Connected to AVDD1
Connected to AVDD1
Connected to AVDD1
Connected to AVDD1
Connected to AVDD1
Table 10 shows the default register configuration at device power-up, or after a reset cycle.
Table 10. Default Register Configuration
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
0
0
1
1
Copyright © 2008, Texas Instruments Incorporated
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