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PCM1770 Datasheet(PDF) 3 Page - Texas Instruments

Part # PCM1770
Description  LOW-VOLTAGE AND LOW-POWER STEREO AUDIO DIGITAL-TO-ANALOG CONVERTER WITH HEADPHONE AMPLIFIER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCM1770 Datasheet(HTML) 3 Page - Texas Instruments

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ELECTRICAL CHARACTERISTICS
PCM1770, PCM1771
SLES011E – SEPTEMBER 2001 – REVISED MARCH 2007
all specifications at T
A = 25°C, VCC = VHP = 2.4 V, fS = 44.1 kHz, system clock = 256 fS and 24-bit data, RL = 16 Ω, unless
otherwise noted
PCM1770PW, PCM1771PW,
PCM1770RGA, PCM1771RGA
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
Resolution
24
Bits
OPERATING FREQUENCY
Sampling frequency (fS)
5
50
kHz
System clock frequency
128f S, 192 fS, 256 fS, 384 fS
DIGITAL INPUT/OUTPUT(1)(2)
Logic family
CMOS compatible
VIH
0.7 VCC
VDC
Input logic level
VIL
0.3 VCC
VDC
IIH
VIN = VCC
10
µA
Input logic current
IIL
VIN = 0 V
–10
µA
VOH
IOH = –2 mA
0.7 VCC
VDC
Output logic level(3)
VOL
IOL = 2 mA
0.3 VCC
VDC
DYNAMIC PERFORMANCE (HEADPHONE OUTPUT)
Full-scale output voltage
0 dB
0.55 VHP
Vp-p
Dynamic range
EIAJ, A-weighted
90
98
dB
Signal-to-noise ratio
EIAJ, A-weighted
90
98
dB
0 dB (13 mW)
0.1%
THD+N
Total harmonic distortion + noise
–20 dB (0.1 mW)
0.04%
0.1%
Stereo
10
13
mWrms
Output power
Monaural
20
26
mWrms
Channel separation
64
72
dB
Load resistance
14
16
DC ACCURACY
Gain error
±2
±8
%FSR
Gain mismatch,
±2
±8
%FSR
channel-to-channel
Bipolar zero error
VOUT = 0.5 VCC at BPZ
±30
±75
mV
ANALOG LINE INPUT (MIXING CIRCUIT)
Analog input voltage range
0.584 VHP
Vp-p
Gain (analog input to headphone
0.67
output)
Analog input impedance
10
k
THD+N
Total harmonic distortion + noise
AIN = 0.56 VHP (peak-to-peak)
0.1%
DIGITAL FILTER PERFORMANCE
Pass band
0.454 fS
Stop band
0.546 fS
Pass-band ripple
±0.04
dB
Stop-band attenuation
–50
dB
Group
20/fS
delay
44.1-kHz de-emphasis error
±0.1
dB
ANALOG FILTER PERFORMANCE
(1)
Digital inputs and outputs are CMOS compatible.
(2)
All logic inputs are 3.3-V tolerant and not terminated internally.
(3)
LRCK and BCK terminals
3
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