Power consumption – Cirrus Logic CS43L22 User Manual
Page 19
DS792F2
19
CS43L22
Confidential Draft
3/4/10
POWER CONSUMPTION
16. Unless otherwise noted, test conditions are as follows: All zeros input, Slave Mode, sample
rate = 48 kHz; No load. Digital (VD) and logic (VL) supply current will vary depending on speed mode
and master/slave operation.
“Required Initialization Settings” on page 32
written on power up.
17. RESET pin 25 held LO, all clocks and data lines are held LO.
18. RESET pin 25 held HI, all clocks and data lines are held HI.
19. VL current will slightly increase in Master Mode.
Register Settings
Typical Current (mA)
Operation
02h
04h
PDN[7:0]
PDN_
HPB[1
:0
]
PDN_HP
A[1:0]
PDN_SPKB[1:0]
PDN_SPKA[1:0]
V
i
VHP
i
VA
i
VD
i
VL
VL=3.3V
i
VP
VP=3.7V
Total
Power
(mW
rms
)
1
Off
x
x
x
x
x
1.8 0.00
0.00
0.00
0.00
0.00
0.00
2.5
0.00
0.00
0.00
0.00
2
Standby
0x9F
x
x
x
x
1.8 0.00
0.00
0.01
0.00
0.00
0.02
2.5
0.00
0.00
0.02
0.05
3
Stereo Passthrough to Headphone
0x9E 10
10
11
11
1.8
2.79
1.91
1.06
0.01
0.00
10.39
2.5
3.18
2.14
1.81
17.85
4
Mono Playback to Headphone
0x9E 10
11
11
11
1.8 1.59
1.99
2.72
0.01
0.00
11.36
2.5
2.07
2.62
4.27
22.43
5
Stereo Playback to Headphone
0x9E 10
10
11
11
1.8 2.77
2.00
2.91
0.01
0.00
13.84
2.5
3.27
2.63
4.28
25.48
6
Mono Playback to Speaker
0x9E 11
11
10
10
1.8
0.00
0.20
4.42
0.01
1.00
12.05
2.5
0.00
0.22
6.77
21.21
7
Stereo Playback to Speaker
0x9E 11
11
10
10
1.8
0.00
0.20
4.38
0.01
1.00
11.98
2.5
0.00
0.22
6.80
21.28