WM9090ECS/R Wolfson Microelectronics, WM9090ECS/R Datasheet - Page 40

• 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
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Table 22 Generic Shut-Down Default Sequence
16 (10h)
17 (11h)
18 (12h)
19 (13h)
20 (14h)
WSEQ
INDEX
REGISTER
ADDRESS
R96 (60h)
R84 (54h)
R76 (4Ch)
R1 (01h)
R1 (01h)
WIDTH
7 bits
2 bits
2 bits
2 bits
1 bit
Generic Shut-Down
The Generic Shut-Down sequence can be initiated by writing 0110h to Register 73 (49h). This single
operation starts the Control Write Sequencer at Index Address 16 (10h) and executes the sequence
defined in Table 22.
This sequence takes approximately 2.8ms to run.
START
Bit 15
Bit 12
Bit 1
Bit 0
Bit 8
DATA
00h
00h
00h
00h
00h
DELAY
0h
0h
0h
0h
0h
EOS
0b
0b
0b
0b
1b
HPOUT1R_DLY = 0
HPOUT1R_OUTP = 0
HPOUT1R_RMV_SHORT = 0
HPOUT1L_DLY = 0
HPOUT1L_OUTP = 0
HPOUT1L_RMV_SHORT = 0
(delay = 0.5ms)
DCS_ENA_CHAN_1 = 0
(delay = 0.5ms)
HPOUT1L_ENA = 0
(delay = 0.5ms)
(delay = 0.5ms)
SPKOUTL_ENA = 0
(delay = 0.5ms)
DCS_ENA_CHAN_0 = 0
HPOUT1R_ENA = 0
CP_ENA = 0
DESCRIPTION
PP, January 2010, Rev 3.0
Pre-Production
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