Datasheet
www.ti.com
PCM1738
SBAS174C – FEBRUARY 2002 – REVISED FEBRUARY 2007
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= 25 ° C, V
DD
= 3.3 V, V
CC
= 5 V, SCKI = 256 f
S
(f
S
= 44.1 kHz), and 24-bit input data (unless otherwise
noted)
PCM1738E
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX
DIGITAL INPUT/OUTPUT
Logic family TTL
compatible
V
IH
2
Input logic level VDC
V
IL
0.8
I
IH
V
IN
= V
DD
10
Input logic current µ A
I
IL
V
IN
= 0 V –10
V
OH
I
OH
= –2 mA 2.4
Output logic level VDC
V
OL
I
OL
= 2 mA 1
I
OHZ
High-impedance output 5
V
OUT
= V
DD
µ A
logic current
(1)
I
OLZ
5
DYNAMIC PERFORMANCE
(2)
f
S
= 44.1 kHz, V
OUT
= 0 dB 0.0004% 0.0008%
Total harmonic distortion
THD+N f
S
= 96 kHz, V
OUT
= 0 dB 0.0006%
+ noise
f
S
= 192 kHz, V
OUT
= 0 dB 0.0012%
EIAJ, A-weighted, f
S
= 44.1 kHz 114 117
Dynamic range A-weighted, f
S
= 96 kHz 117 dB
A-weighted, f
S
= 192 kHz 117
EIAJ, A-weighted, f
S
= 44.1 kHz 114 117
SNR Signal-to-noise ratio A-weighted, f
S
= 96 kHz 117 dB
A-weighted, f
S
= 192 kHz 117
f
S
= 44.1 kHz 110 115
Channel separation f
S
= 96 kHz 113 dB
f
S
= 192 kHz 111
Level linearity error V
OUT
= –110 dB ± 1 dB
DC ACCURACY
V
CCM
2 voltage 2.45 V
V
CCM
2 output current ∆ V
COM
2 < 5% 100 µ A
Gain error ± 2 % of FSR
Gain mismatch,
± 0.5 % of FSR
channel-to-channel
Bipolar zero error At bipolar zero ± 0.5 % of FSR
DSD-MODE DYNAMIC PERFORMANCE at 44.1 kHz, 64 f
S
(3)
THD+N Total harmonic distortion ± 2.48 mAp-p, full scale 0.0004%
+ noise
Dynamic range –60 dB, EIAJ, A-weighted 117 dB
SNR Signal-to-noise ratio EIAJ, A-weighted 117 dB
ANALOG OUTPUT
Output current Full scale (0 dB) ± 2.48 mAp-p
DSD mode output current 50% output ± 1.24 mAp-p
Center current Bipolar zero input 0 mA
(1) Pin 11 (MDO)
(2) Analog performance specifications are measured using an Audio Precision™System Two™ audio measurement system in the
averaging mode. At 44.1-kHz operation, bandwidth measurement is limited to 20 kHz. At 96 kHz and 192 kHz, bandwidth measurement
is limited to 40 kHz.
(3) Theoretical performance in DSD modulation index of 100%. Performance is equivalent to the PCM mode.
3
Submit Documentation Feedback