SI3056-D-FSR Silicon Laboratories Inc, SI3056-D-FSR Datasheet - Page 75

• Manufacturer Part Number: SI3056-D-FSR
• Description: Modem Chip Chipset 56Kbps 16-Pin SOIC T/R
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3056-D-FSR

• Package: 16SOIC
• Main Category: Chipset
• Maximum Data Rate: 56 Kbps
• Typical Operating Supply Voltage: 3.3 V
• Power Supply Type: Analog
• Typical Supply Current: 15 mA
• Minimum Operating Supply Voltage: 3 V
• Maximum Operating Supply Voltage: 3.6 V
• Lead Free Status / RoHS Status: Compliant

Register 40. TX Gain Control 3 (Si3019 Line-Side Device Only)
Reset settings = 0000_0000
Bit
7:5
3:0
Name
Type
4
Bit
TXG3[3:0] Transmit Gain 3.
Reserved Read returns zero.
Name
TGA3
D7
Transmit Gain or Attenuation 3.
0 = Incrementing the TXG3[3:0] bits results in gaining up the transmit path.
1 = Incrementing the TXG3[3:0] bits results in attenuating the transmit path.
Each bit increment represents 0.1 dB of gain or attenuation, up to a maximum of 1.5 dB.
For example:
TGA3
X
0
0
0
1
1
1
D6
D5
TXG3[3:0]
0000
0001
1111
0001
1111
:
:
TGA3
R/W
D4
D3
Rev. 1.05
Result
0 dB gain or attenuation is applied to the transmit path.
0.1 dB gain is applied to the transmit path.
1.5 dB gain is applied to the transmit path.
0.1 dB attenuation is applied to the transmit path.
1.5 dB attenuation is applied to the transmit path.
D2
TXG3[3:0]
Function
R/W
D1
D0
Si3018/19/10
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