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WM8904ECS/R 数据表(PDF) 22 Page - Wolfson Microelectronics plc

部件名 WM8904ECS/R
功能描述  Ultra Low Power CODEC for Portable Audio Applications
PDF  188 Pages
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制造商  WOLFSON [Wolfson Microelectronics plc]
网页  http://www.wolfsonmicro.com
标志 WOLFSON - Wolfson Microelectronics plc

WM8904ECS/R 数据表(HTML) 22 Page - Wolfson Microelectronics plc

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WM8904
Pre-Production
w
PP, Rev 3.3, September 2012
22
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
V
mA
V
mA
V
mA
V
mA
V
mA
mW
48kHz sample rate
1.80
1.69
1.00
0.76
1.80
0.00
1.80
0.31
2.50
0.01
4.38
8kHz sample rate
1.80
1.69
1.00
0.18
1.80
0.00
1.80
0.31
2.50
0.01
3.80
48kHz, Po = 0.1mW/channel
1kHz sine wave 0dBFS
HPOUT_VOL= -25dB
DAC_VOL= 0dB
1.80
1.71
1.00
0.77
1.80
0.00
1.80
1.99
2.50
0.01
7.45
48kHz, Po = 1mW/channel
1kHz sine wave 0dBFS
HPOUT_VOL= -15dB
DAC_VOL= 0dB
1.80
1.73
1.00
0.77
1.80
0.00
1.80
5.61
2.50
0.01
13.99
48kHz sample rate, Master mode,
FLL enabled, MCLK input frequency =
13MHz
1.80
1.82
1.00
1.05
1.80
0.73
1.80
0.30
2.50
0.01
6.18
48kHz sample rate, Master mode,
FLL enabled, MCLK input frequency =
32.768kHz
1.80
1.83
1.00
0.94
1.80
0.76
1.80
0.29
2.50
0.01
6.14
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
V
mA
V
mA
V
mA
V
mA
V
mA
mW
48kHz sample rate
1.80
0.99
1.00
0.61
1.80
0.00
1.80
0.31
2.50
0.01
2.98
48kHz, Po = 0.1mW/channel
1kHz sine wave 0dBFS
HPOUT_VOL= -25dB
DAC_VOL= 0dB
1.80
1.02
1.00
0.62
1.80
0.00
1.80
1.68
2.50
0.01
5.51
48kHz, Po = 1mW/channel
1kHz sine wave 0dBFS
HPOUT_VOL= -15dB
DAC_VOL= 0dB
1.80
1.04
1.00
0.62
1.80
0.00
1.80
5.23
2.50
0.01
11.93



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