Datasheet
PCM9211
SBAS495 –JUNE 2010
www.ti.com
ELECTRICAL CHARACTERISTICS: Digital Audio I/F Receiver (DIR)
All specifications at T
A
= +25°C, V
CC
= V
DD
= V
DDRX
= 3.3 V, and V
CCAD
= 5 V, unless otherwise noted.
PCM9211
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DIR, COAXIAL INPUT AMPLIFIER (RXIN0 and RXIN1)
Input resistance 20 kΩ
Input voltage 0.2 V
PP
Input hysteresis 50 mV
Input sampling frequency 7 216 kHz
DIR, BIPHASE SIGNAL INPUT and PLL
Normal mode 28 108 kHz
Input biphase sampling
frequency range
Wide mode 7 216 kHz
Input sampling frequency
IEC60958-3 (2003-01) Level III (±12.5%)
accuracy
Jitter tolerance IEC60958-3 (2003-01) IEC60958-3
From biphase signal detection to error out
PLL lock up time
(1)
100 ms
release (ERROR = L)
DIR, RECOVERED CLOCK and DATA
Serial audio data width 16 24 Bits
128f
S
0.896 27.648 MHz
System clock frequency 256f
S
1.792 55.296 MHz
512f
S
3.584 55.296 MHz
Bit clock frequency 64f
S
0.448 13.824 MHz
LR clock frequency f
S
7 216 kHz
f
S
= 48 kHz, SCKO = 256f
S
, measured
System clock jitter 50 100 ps, rms
period jitter
System clock duty cycle 50% reference ±5 ±5 %
DIT
Output biphase sampling
7 216 kHz
frequency
128f
S
0.896 27.648 MHz
Input system clock frequency 256f
S
1.792 55.296 MHz
512f
S
3.584 55.296 MHz
Input bit clock frequency 64f
S
0.448 13.824 MHz
Input LR clock frequency f
S
7 216 kHz
OSCILLATOR CIRCUIT, XTI and XMCKO CLOCK
XTI source clock frequency 24.576 MHz
Frequency accuracy –100 100 ppm
XTI input clock duty cycle 45 55 %
XMCKO frequency 24.576 MHz
XMCKO output duty cycle 50% reference ±5 ±5 %
PCM OUTPUT PORT (SCKO, BCK, LRCK, DOUT)
System clock frequency 128f
S
/ 256f
S
/ 512f
S
0.896 55.296 MHz
Bit clock output frequency 64f
S
0.448 13.824 MHz
LR clock output frequency f
S
7 216 kHz
ROUTING
System clock frequency 128f
S
/ 256f
S
/ 512f
S
0.896 55.296 MHz
Bit clock output Frequency 64f
S
0.448 13.824 MHz
LR clock output frequency f
S
7 216 kHz
(1) PLL lock-up time varies with ERROR release wait time setting (Register 23h/ERRWT). Therefore, lock-up time in this table shows the
value at ERRWT = 11 as the shortest time setting.
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