Datasheet
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ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
PCM1780 , PCM1781 , PCM1782
SLES132B – MARCH 2005 – REVISED AUGUST 2006
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can
range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to
damage because very small parametric changes could cause the device not to meet its published specifications.
over operating free-air temperature range (unless otherwise noted)
(1)
PCM1780, PCM1781, PCM1782
Supply voltage V
CC
–0.3 V to 6.5 V
Input voltage –0.3 V to V
CC
+ 0.3 V, < 6.5 V
Input current (any pins except supplies) ±10 mA
Ambient temperature under bias – 40°C to 125°C
Storage temperature – 55°C to 150°C
Junction temperature 150°C
Lead temperature (soldering) 260°C, 5 s
Package temperature (IR reflow, peak) 260°C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
over operating free-air temperature range
MIN NOM MAX UNIT
Digital and analog supply voltage, V
CC
4.5 5 5.5 V
Digital input logic family TTL
System clock 8.192 36.864 MHz
Digital input clock frequency
Sampling clock 32 192 kHz
Analog output load resistance 5 k Ω
Analog output load capacitance 50 pF
Digital output load capacitance 20 pF
Operating free-air temperature, T
A
–25 85 °C
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
Resolution 24 Bits
DATA FORMAT
PCM1780, Right-justified, I
2
S,
PCM1782 left-justified
Audio data interface format
PCM1781 I
2
S, right-justified
PCM1780, 16-, 18-, 20-, 24-bit
PCM1782 selectable
Audio data bit length
16–24-bit I
2
S, 16-bit
PCM1781
right-justified
Audio data format MSB-first, 2s complement
f
S
Sampling frequency 5 200 kHz
128 f
S
, 192 f
S
, 256 f
S
, 384 f
S
,
System clock frequency
512 f
S
, 768 f
S
, 1152 f
S
2
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