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WM9714LGEFL/V 데이터시트(PDF) 7 Page - Wolfson Microelectronics plc

부품명 WM9714LGEFL/V
상세설명  AC 97 Audio CODEC
PDF  94 Pages
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제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM9714LGEFL/V 데이터시트(HTML) 7 Page - Wolfson Microelectronics plc

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Pre-Production
WM9714L
w
PP Rev 3.0 June 2006
7
ELECTRICAL CHARACTERISTICS
AUDIO OUTPUTS
Test Conditions
DBVDD=3.3V, DCVDD = 3.3V, AVDD=HPVDD=SPKVDD =3.3V, TA = +25
oC, 1kHz signal, fs = 48kHz, 24-bit audio data unless
otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DAC to Line-Out (HPL/R, SPKL/R or MONO with 10k
Ω
Ω
Ω
Ω / 50pF load)
Full-scale output (0dBFS)
AVDD = 3.3V, PGA gains
set to 0dB
1
V rms
Signal to Noise Ratio
(A-weighted)
SNR
85
94
dB
Total Harmonic Distortion
THD
-3dB output
-85
-74
dB
Power Supply Rejection
PSRR
100mV, 20Hz to 20kHz
signal on AVDD
50
dB
Speaker Output (SPKL/SPKR with 8
Ω
Ω
Ω
Ω bridge tied load, INV=1)
Output Power at 1% THD
PO
THD = 1%
400
mW (rms)
Abs. max output power
POmax
500
mW (rms)
Total Harmonic Distortion
THD
PO = 200mW
-66
0.05
dB
%
Signal to Noise Ratio
(A-weighted)
SNR
90
dB
Stereo Speaker Output (SPKL/OUT4 and SPKR/OUT3 with 8
Ω
Ω
Ω
Ω bridge tied load, INV=1)
Output Power at 1% THD
PO
THD = 1%
400
mW (rms)
Abs. max output power
POmax
500
mW (rms)
Total Harmonic Distortion
THD
PO = 200mW
-66
0.05
dB
%
Signal to Noise Ratio
(A-weighted)
SNR
90
dB
Headphone Output (HPL/R, OUT3/4 or SPKL/SPKR with 16
Ω
Ω
Ω
Ω or 32Ω
Ω
Ω
Ω load)
Output Power per channel
PO
Output power is very closely correlated with THD; see below.
PO=10mW, RL=16
Ω
-80
PO=10mW, RL=32
Ω
-80
PO=20mW, RL=16
Ω
-78
Total Harmonic Distortion
THD
PO=20mW, RL=32
Ω
-79
dB
Signal to Noise Ratio
(A-weighted)
SNR
90
dB
Note:
1.
All THD values are valid for the output power level quoted above – for example, at HPVDD=3.3V and RL=16
Ω, THD is
–80dB when output power is 10mW. Higher output power is possible, but will result in deterioration in THD.



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