Datasheet

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Functional Block Diagram
Audio
Serial
Port
Output Amp and
Low−Pass Filter
DAC
4x/8x
Oversampling
Digital Filter
with
Function
Controller
Enhanced
Multilevel
Delta−Sigma
Modulator
Output Amp and
Low−Pass Filter
DAC
BCK
LRCK
DATA
ML
MC
MD
Serial
Control
Port
System Clock
Manager
Zero Detect
Power Supply
V
OUT
L
V
COM
V
OUT
R
V
DD
DGND
ZEROL
ZEROR
SCK
System Clock
V
CC
AGND
PCM1742
SBAS176A – DECEMBER 2000 – REVISED APRIL 2005
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T
A
= 25°C, V
CC
= 5 V, V
DD
= 3.3 V, f
S
= 44.1 kHz, system clock = 384 f
S
, and 24-bit data (unless
otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
POWER SUPPLY REQUIREMENTS
(6)
V
DD
3 3.3 3.6
Voltage range Vdc
V
CC
4.5 5 5.5
f
S
= 44.1 kHz 6 10
I
DD
Supply current f
S
= 96 kHz 13 mA
f
S
= 192 kHz 16
f
S
= 44.1 kHz 8.5 13
I
CC
Supply current f
S
= 96 kHz 9 mA
f
S
= 192 kHz 9
f
S
= 44.1 kHz 62 98
Power dissipation f
S
= 96 kHz 88 mW
f
S
= 192 kHz 98
TEMPERATURE RANGE
T
A
Operation temperature –25 85 °C
θ
JA
Thermal resistance 115 °C/W
(6) Conditions in 192-kHz operation are: system clock = 128 f
S
and oversampling rate = 64 f
S
(under register control).
5