Rainbow-electronics ATR1842 Manual de usuario descargar pdf (Pagina 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

00 Sleep

Table 6-2. Gain Selection Register

g1 g2 g3 g4 g5 g6 Gain

111111 +6dB

……

100000 0dB

……

000000 –6dB

1 2 3 4 5 6 7 8

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Rainbow-electronics ATR1842 Manual de usuario Pagina 5