IC 192KHZ SAMPL RATE CONV 28SSOP

 

SRC4192IDBRG4

Manufacturer Part NumberSRC4192IDBRG4
DescriptionIC 192KHZ SAMPL RATE CONV 28SSOP
ManufacturerTexas Instruments
TypeSample Rate Converter
SRC4192IDBRG4 datasheets

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Specifications of SRC4192IDBRG4

ApplicationsBroadcast, Consoles, ReceiversMounting TypeSurface Mount
Package / Case28-SSOPFor Use With296-18834 - EVAL MODULE FOR SRC4192
Lead Free Status / RoHS StatusLead free / RoHS Compliant  
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AUDIO PORT MODES
The SRC4192 and SRC4193 both support seven serial port
modes, which are shown in Table 1. For the SRC4192, the
audio port mode is selected using the MODE0 (pin 26),
MODE1 (pin 27), and MODE2 (pin 28) inputs. For the
SRC4193, the mode is selected using the MODE[2:0] bits in
Control Register 1. The default mode setting for the SRC4193
is both input and output ports set to Slave mode.
In Slave mode, the port LRCK and BCK clocks are config-
ured as inputs, and receive their clocks from an external
audio device. In Master mode, the LRCK and BCK clocks are
configured as outputs, being derived from the reference
clock input (RCKI). Only one port can be set to Master mode
at any given time, as indicated in Table 1.
MODE2 MODE1 MODE0
SERIAL PORT MODE
0
0
0
Both Input and Output Ports are Slave mode
0
0
1
Output Port is Master mode with RCKI = 128f
0
1
0
Output Port is Master mode with RCKI = 512f
0
1
1
Output Port is Master mode with RCKI = 256f
1
0
0
Both Input and Output Ports are Slave Mode
1
0
1
Input Port is Master mode with RCKI = 128f
1
1
0
Input Port is Master mode with RCKI = 512f
1
1
1
Input Port is Master mode with RCKI = 256f
TABLE 1. Setting the Serial Port Modes.
LRCKO
BCKI
SDIN
MSB
LRCKI
BCKI
SDIN
LRCKI
BCKI
MSB
SDIN
FIGURE 4. Input Data Formats.
18
INPUT PORT OPERATION
The audio input port is a three-wire synchronous serial
interface that may operate in either Slave or Master mode.
The SDIN input (pin 4) is the serial audio data input. Audio
data is input at this pin in one of three standard audio data
2
formats: Philips I
audio data word length may be up to 24-bits for I
Justified formats, while the Right Justified format supports
16-, 18-, 20-, or 24-bit data. The data formats are shown in
Figure 4, while critical timing parameters are shown in Figure
5 and listed in the Electrical Characteristics table.
LRCKI
t
LRIS
BCKI
S
t
LDIS
S
S
SDIN
S
S
S
FIGURE 5. Input Port Timing.
Left Channel
Right Channel
LSB
MSB
LSB
(a) Left Justified Data Format
MSB
LSB
MSB
(b) Right Justified Data Format
LSB
MSB
LSB
(c) I 2 S Data Format
1/f
S
www.ti.com
S, Left Justified, or Right Justified. The
2
S and Left
t
SIH
t
SIL
t
LDIH
LSB
SRC4192, SRC4193
SBFS022B

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