Datasheet

www.ti.com
PCM1780 , PCM1781 , PCM1782
SLES132B – MARCH 2005 – REVISED AUGUST 2006
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= 25°C, V
CC
= 5 V, f
S
= 48 kHz, system clock = 512 f
S
, and 24-bit data (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DIGITAL INPUT/OUTPUT
Logic family TTL compatible
V
IH
2
Input logic level Vdc
V
IL
0.8
I
IH
(1)
V
IN
= V
CC
10
I
IL
(1)
V
IN
= 0 V –10
Input logic current µ A
I
IH
(2)
V
IN
= V
CC
65 100
I
IL
(2)
V
IN
= 0 V –10
V
OH
(3)
I
OH
= –1 mA 2.4
Output logic level Vdc
V
OL
(4)
I
OL
= 1 mA 0.4
DYNAMIC PERFORMANCE
(5)
V
OUT
= 0 dB, f
S
= 48 kHz 0.002% 0.006%
V
OUT
= 0 dB, f
S
= 96 kHz, system
0.003%
THD+N Total harmonic distortion + noise clock = 256 f
S
V
OUT
= 0 dB, f
S
= 192 kHz, system
0.004%
clock = 128 f
S
EIAJ, A-weighted, f
S
= 48 kHz 100 106
A-weighted, f
S
= 96 kHz, system
104
Dynamic range clock = 256 f
S
dB
A-weighted, f
S
= 192 kHz, system
102
clock = 128 f
S
EIAJ, A-weighted, f
S
= 48 kHz 100 106
A-weighted, f
S
= 96 kHz, system
104
SNR Signal-to-noise ratio clock = 256 f
S
dB
A-weighted, f
S
= 192 kHz, system
102
clock = 128 f
S
f
S
= 48 kHz 97 103
Channel separation f
S
= 96 kHz, system clock = 256 f
S
101 dB
f
S
= 192 kHz, system clock = 128 f
S
100
DC ACCURACY
% of
Gain error ±1 ±6
FSR
% of
Gain mismatch, channel-to-channel ±1 ±6
FSR
Bipolar zero error V
OUT
= 49% of V
CC
at BPZ input ±30 ±80 mV
ANALOG OUTPUT
Output voltage Full scale (–0 dB) 0.78 V
CC
Vp-p
Bipolar zero voltage 0.49 V
CC
Vdc
Load impedance AC-coupled load 5 k Ω
DIGITAL FILTER PERFORMANCE
Filter Characteristics (Sharp Rolloff)
Pass band ±0.04 dB 0.454 f
S
Stop band 0.546 f
S
Pass-band ripple 0.04 dB
Stop-band attenuation Stop band = 0.546 f
S
–50 dB
(1) Pins 5, 6, 7, 8: SCK, DATA, BCK, LRCK
(2) Pins 2, 3, 4: MS, MC, MD (PCM1780/PCM1782). Pins 1, 2, 3, 4: FMT, DEMP0, DEMP1, MUTE (PCM1781)
(3) Pins 1, 16: ZEROL, ZEROR (PCM1780). Pin 16: ZEROA (PCM1781)
(4) Pins 1, 16: ZEROL, ZEROR (PCM1780/PCM1782). Pin 16: ZEROA (PCM1781)
(5) Analog performance specifications are measured using the System Two™ Cascade audio measurement system by Audio Precision™.
3
Submit Documentation Feedback