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| 型號(hào)： | PCM1850PJTR |
| 英文描述： | 24-BIT, 96-kHz STEREO A/D CONVERTER WITH 6 X 2-CHANNEL MUX AND PGA |
| 中文描述： | 24位，96千赫立體聲A / D轉(zhuǎn)換器6 × 2通道的MUX和PGA |
| 文件頁(yè)數(shù)： | 6/30頁(yè) |
| 文件大?。?/td> | 370K |
| 代理商： | PCM1850PJTR |
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PCM1850
PCM1851
SLES108
MARCH 2004
www.ti.com
6
ELECTRICAL CHARACTERISTICS (Continued)
All specifications at T
A
= 25
°
C, V
CC
= 5 V, V
DD
= 3.3 V, master mode, f
S
= 48 kHz, system clock = 256 f
S
, 24-bit data, unless otherwise noted
PARAMETER
TEST CONDITIONS
PCM1850PJT PCM1851PJT
UNIT
MIN
TYP
MAX
OUTPUT LOGIC
V
OH
(1)
V
OL(1) (2)
AFE MULTIPLEXER
Output logic level
I
OUT
= –4 mA
I
OUT
= 4 mA
2.8
VDC
0.5
Input channels
6
Input level for full scale
2
2.4
Vrms
Center voltage (V
REF
1)
Center voltage (V
REF
S)
Selected channel
0.5 V
CC
0.5 V
CC
169
V
Unselected channel
V
Input impedance
Selected channel
50
k
Unselected channel
50
57
AFE PGA
Gain range
–11
0
11
dB
Gain step
0.5
dB
Monotonicity
Specified
Antialiasing filter frequency response
–3 dB, PGA gain = –5.5 dB
300
kHz
MONITOR OUTPUT
Output level for full scale
AC-coupled, >10 k
AC-coupled
AC-coupled, 10 k
, 3 Vp-p output,
AC-coupled, 10 k
AC-coupled, 10 k
0.6 V
CC
Vp-p
k
Output load
THD+N
(3) (4)
S/N ratio
(3) (4)
Gain error
(3) (4)
10
0.0016%
104
dB
–3
% of FSR
Center voltage
0.5 V
CC
V
ADC
Resolution
24
bits
Full scale input voltage
0.6 V
CC
Vp-p
ACCURACY
Gain mismatch, channel-to-channel
±
1
±
2
±
2
±
3
±
5
% of FSR
Gain error
% of FSR
Bipolar zero error
High-pass filter bypass
% of FSR
(1)
Pins 1–4: LRCK, BCK (in master mode), DOUT, OVER
(2)
Pin 32: SDA (PCM1851) (open-drain LOW output)
(3)
Analog performance specifications are tested with the System Two
audio measurement system by Audio Precision
, using a 400-Hz HPF and
20-kHz LPF in the RMS mode at f
IN
= 1 kHz.
(4)
Reference level (0 dB) is specified as 2-V rms input on V
IN
L[1:6] and V
IN
R[1:6] pins with PGA gain of –5.5 dB.
Audio Precision and System Two are trademarks of Audio Precision, Inc.
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