WM9090ECS/R Wolfson Microelectronics, WM9090ECS/R Datasheet - Page 70

• Manufacturer Part Number: WM9090ECS/R
• Description: Audio CODECs Audio Subsystem w/ capless headphones
• Manufacturer: Wolfson Microelectronics

Specifications of WM9090ECS/R

• Interface Type: 2-Wire, l2C
• Thd Plus Noise: 80 dB
• Ic Function: Ultra Low Power Audio Subsystem
• Brief Features: Mono Class D Speaker Driver, Automatic Gain Control (AGC)
• Supply Voltage Range: 2.7V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM9090
w
Register 63h AGC Control 1
Register 64h AGC Control 2
AGC Control
REGISTER
REGISTER
R100 (64h)
ADDRESS
ADDRESS
2
BIT
BIT
5:0
8
AGC_MINGAIN
AGC_RAMP
LABEL
LABEL
[5:0]
DEFAULT
DEFAULT
00_0000
0
power limiting
000 = 1080ms/6dB
001 = 1200ms/6dB
010 = 1320ms/6dB
011 = 1680ms/6dB
100 = 2040ms/6dB
101 = 2760ms/6dB
110 = 4080ms/6dB
111 = 8160ms/6dB
AGC Ramp Control
Selects how the AGC gain adjustment is applied
0 = Multiple gains steps per zero-cross
1 = Single gain step per zero-cross
AGC Minimum Gain
-57dB to +6dB in 1dB steps
DESCRIPTION
DESCRIPTION
PP, January 2010, Rev 3.0
REFER TO
REFER TO
Pre-Production
70