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PCM2912 Datasheet(PDF) 5 Page - Texas Instruments

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Part # PCM2912
Description  AUDIO CODEC WITH USB INTERFACE, MONO MICROPHONE INPUT AND STEREO HEADPHONE OUTPUT
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCM2912 Datasheet(HTML) 5 Page - Texas Instruments

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PCM2912
SLES216 – FEBRUARY 2008
ELECTRICAL CHARACTERISTICS (continued)
All specifications at TA = 25°C, VBUS = 5 V, fS = 44.1 kHz, fIN = 1 kHz, 16-bit data, unless otherwise noted
PCM2912PJT
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
DAC CHARACTERISTICS
Resolution
16
Bits
Audio data channel
1, 2
channel
8, 11.025, 16, 22.05, 32, 44.1,
Sampling frequency
kHz
48
DYNAMIC PERFORMANCE(7)
RL > 10 kΩ, VOUT = 0 dB of 0.6 VCCA
0.01%
0.02%
THD+N
RL = 32 Ω, VOUT = 0 dB of 0.55 VCCA
0.02%
0.05%
Dynamic range
EIAJ, A-Weighted
82
90
dB
S/N ratio
EIAJ, A-Weighted
84
92
dB
Channel separation
RL > 10 kΩ
80
88
dB
DC ACCURACY
Gain mismatch
±2
±10 % of FSR
channel-to-channel
Gain error
±2
±10 % of FSR
Bipolar zero error
±3
% of FSR
ANALOG OUTPUT
RL > 10 kΩ
0.6 VCCA
Output voltage
Vp-p
RL = 32 Ω
0.55 VCCA
Center voltage
0.5 VCCA
V
RL = 32 Ω
13
Output power
mW
RL = 16 Ω
25
LINE
10
k
Load impedance (AC coupling)
HEADPHONE
16
32
–3 dB
140
kHz
LPF frequency response
f = 20 kHz
–0.1
dB
SIDETONE PROGRAMMABLE ATTENUATOR
Gain range
–76
0
dB
Gain step size
1
dB
OUTPUT PROGRAMMABLE ATTENUATOR
Gain range
–76
0
dB
Gain step size
1
dB
ANALOG LOOPBACK PERFORMANCE(8)
RL > 10 kΩ, VIN = 0 dB of 0.43 VCCA
0.01%
0.02%
THD+N
RL = 32 Ω, VIN = 0 dB of 0.43 VCCA
0.02%
0.05%
Dynamic range
EIAJ, A-weighted
82
90
dB
S/N ratio
EIAJ, A-weighted
84
92
dB
(7)
fOUT = 1 kHz, using Audio Precision ™System Two ™, RMS mode with 20 kHz LPF, 400 Hz HPF. Output attenuator = 0 dB,
Sidetone = Mute.
(8)
MIC Amp = 0 dB, Sidetone attenuator = 0 dB, Output attenuator = 0 dB.
Copyright © 2008, Texas Instruments Incorporated
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