WM8904
Pre-Production
High Performance Stereo Playback to Headphones - DAC input to HPOUTL+HPOUTR pins with 30Ω load.
Test conditions:
VMID_RES = 01 (for normal operation)
CP_DYN_PWR = 1 (Class-W, Charge pump controlled by real-time audio level)
Low Power Playback mode disabled. (See Table 49 for details; note that Low Power Playback mode is disabled by default.)
Variant test conditions
AVDD
DCVDD
DBVDD
CPVDD
MICVDD
TOTAL
mW
V
mA
1.69
1.69
1.71
V
mA
0.76
0.18
0.77
V
mA
0.00
0.00
0.00
V
mA
0.31
0.31
1.99
V
mA
48kHz sample rate
8kHz sample rate
1.80
1.80
1.80
1.00
1.00
1.00
1.80
1.80
1.80
1.80
1.80
1.80
2.50
2.50
2.50
0.01
0.01
0.01
4.38
3.80
48kHz, Po = 0.1mW/channel
1kHz sine wave 0dBFS
7.45
HPOUT_VOL= -25dB
DAC_VOL= 0dB
48kHz, Po = 1mW/channel
1kHz sine wave 0dBFS
1.80
1.73
1.00
0.77
1.80
0.00
1.80
5.61
2.50
0.01
13.99
HPOUT_VOL= -15dB
DAC_VOL= 0dB
48kHz sample rate, Master mode,
1.80
1.80
1.82
1.83
1.00
1.00
1.05
0.94
1.80
1.80
0.73
0.76
1.80
1.80
0.30
0.29
2.50
2.50
0.01
0.01
6.18
6.14
FLL enabled, MCLK input frequency =
13MHz
48kHz sample rate, Master mode,
FLL enabled, MCLK input frequency =
32.768kHz
Low Power Stereo Playback to Headphones - DAC input to HPOUTL+HPOUTR pins with 30Ω load.
Test conditions:
VMID_RES = 01 (for normal operation)
CP_DYN_PWR = 1 (Class-W, Charge pump controlled by real-time audio level)
Low Power Playback Mode enabled (See Table 48 for details)
SYSCLK = 6.144MHz, CLK_SYS_RATE = 0001b (for 128 fs clocking)
Variant test conditions
AVDD
DCVDD
DBVDD
CPVDD
MICVDD
TOTAL
mW
V
mA
0.99
1.02
V
mA
0.61
0.62
V
mA
0.00
0.00
V
mA
0.31
1.68
V
mA
0.01
0.01
48kHz sample rate
1.80
1.80
1.00
1.00
1.80
1.80
1.80
1.80
2.50
2.50
2.98
48kHz, Po = 0.1mW/channel
1kHz sine wave 0dBFS
5.51
HPOUT_VOL= -25dB
DAC_VOL= 0dB
48kHz, Po = 1mW/channel
1kHz sine wave 0dBFS
1.80
1.04
1.00
0.62
1.80
0.00
1.80
5.23
2.50
0.01
11.93
HPOUT_VOL= -15dB
DAC_VOL= 0dB
PP, Rev 3.3, September 2012
22
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
