The PCM9211 is a complete analog and digital front-end for today's multimedia players and recorders

PCM9211

Manufacturer Part NumberPCM9211
DescriptionThe PCM9211 is a complete analog and digital front-end for today's multimedia players and recorders
ManufacturerTexas Instruments
PCM9211 datasheet
 


Specifications of PCM9211

Jitter(ps)50Sampling Rate(max)(khz)216
Power Supply(v)4.5-5.5 for Analog ,2.9-3.6 for DIXAdc Resolution(bits)24
Adc Sample Rate (ksps)96Control ModeSPI, I2C, Hardware
InputsPCM,S/PDIF, ADCOutputPCM,S/PDIF
Operating Temperature Range(c)-40 to 85Pin/package48LQFP
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PCM9211
SBAS495 – JUNE 2010
Serial Control Mode
The PCM9211 supports two types of control interface, which are set using the MODE pin (pin 27), as defined in
Table
33.
MODE
Tied to DGND
Tied to VDD
The input state of the MODE pin is only sampled during a power-on reset or external reset event. Therefore, any
change after device power on or external reset is ignored.
Table 34
shows the pin assignments based on the control interface selected.
Table 34. Pin Assignments for SPI and I
PIN
23
24
25
26
Four-Wire (SPI) Serial Control
The PCM9211 includes an SPI-compatible serial port, which operates asynchronously to the audio serial
interface. The control interface consists of these data sources: MDI/SDA, MS/ADR1, MC/SCL, and MDO/ADR0.
MDI is the serial data input to program the mode control registers. In other applications, this source may be
known as MOSI.
MDO is the serial data output to read back register settings and some flags. In other applications, this source
may be known as MISO.
MC is the serial bit clock to shift the data into the control port. In other applications, this clock may be known
as SCK.
MS is the select input to enable the mode control port. In other applications, this control may be known as an
active-low Chip Select (CS).
Control Data Word Format
All single write/read operations via the serial control port use 16-bit data words.
word format. The first bit is for read/write control, where '0' indicates a write operation and '1' shows a read
operation. The next seven bits, labeled ADR[6:0], set the register address for the write/read operation. The least
significant eight bits, D[7:0] on MDI or MDO, contain the data to be written to (or read from) the register specified
by ADR[6:0].
MSB
R/W
ADR 6 ADR 5 ADR 4 ADR 3 ADR 2 ADR 1 ADR 0
Register
Figure 36. Control Data Word Format for MDI
54
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Table 33. Mode Control Interface Types
MODE CONTROL INTERFACE
Two-wire (I
Four-wire (SPI) serial control
2
C Control Interfaces
DEFINITION
SPI MODE
MDO
MDI
MC
MS
D7
D6
D5
Address
Product Folder Link(s):
PCM9211
www.ti.com
2
C) serial control
2
I
C MODE
ADR0
SDA
SCL
ADR1
Figure 36
shows the control data
LSB
D4
D3
D2
D1
D0
Register Data
Copyright © 2010, Texas Instruments Incorporated