Rainbow Electronics ATR1842 - Manual (Page 5)

5
9109AS–DVD–08/07
ATR1842 [Preliminary]
6. Serial Programming Interface
6.1 Data
6.2 Mode Setting
The first two bits select the mode/gain level.
6.3 Gain Setting
The last six bits are used to finely adjust the gain by ±6 dB.
MSB2 LSB2
m1 m2 g1 g2 g3 g4 g5 g6
Table 6-1. Mode Selection Register
m1 m2 Mode Select
1 1 High Gain
1 0 Middle Gain
0 1 Low Gain
0 0 Sleep
Table 6-2. Gain Selection Register
g1 g2 g3 g4 g5 g6 Gain
1 1 1 1 1 1 +6 dB
… …
1 0 0 0 0 0 0 dB
… …
0 0 0 0 0 0 –6 dB