Refer to the PDF data sheet for device specific package drawings
The SRC4192 and SRC4193 devices are asynchronous, sample-rate converters designed for professional and broadcast audio applications. The SRC4192 and SRC4193 devices combine a wide input-to-output sampling ratio with outstanding dynamic range and ultra-low distortion. Input and output serial ports support standard audio formats, as well as a Time Division Multiplexed (TDM) mode. Flexible audio interfaces allow the SRC4192 and SRC4193 devices to connect to a wide range of audio data converters, digital audio receivers and transmitters, and digital signal processors.
The SRC4192 device is a standalone, pin-programmed device, with control pins for mode, data format, mute, bypass, and low group-delay functions. The SRC4193 device is a software-controlled device featuring a serial peripheral interface (SPI) port, which is utilized to program all functions through the internal control registers.
The SRC4192 and SRC4193 devices can operate from a single 3.3-V power supply. A separate digital I/O supply (VIO) operates over the 1.65-V to 3.6-V supply range, allowing greater flexibility when interfacing to current and future generation signal processors and logic devices. Both devices are available in a 28-pin SSOP package.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
SRC4192 | SSOP (28) | 5.30 mm × 10.20 mm |
SRC4193 |
Changes from B Revision (September 2007) to C Revision
Changes from A Revision (July 2003) to B Revision
PIN | I/O | DESCRIPTION | ||
---|---|---|---|---|
NAME | SRC4192 | SRC4193 | ||
BCKI | 5 | 5 | I | Input port bit clock I/O |
BCKO | 25 | 25 | O | Output port bit clock I/O |
BYPAS | 9 | 9 | I | ASRC bypass control input (Active High) |
CCLK | — | 27 | I | SPI port data clock input |
CDATA | — | 28 | I | SPI port serial data input |
CS | — | 26 | I | SPI port chip select input (Active Low) |
DGND | 8, 21 | 8, 21 | – | Digital ground |
IFMT0 | 10 | — | I | Input port data format control input |
IFMT1 | 11 | — | I | Input port data format control input |
IFMT2 | 12 | — | I | Input port data format control input |
LGRP | 1 | — | I | Low group delay control input (active high) |
LRCKI | 6 | 6 | I | Input port left/right word clock I/O |
LRCKO | 24 | 24 | O | Output port left/right word clock I/O |
MODE0 | 26 | — | I | Serial port mode control input |
MODE1 | 27 | — | I | Serial port mode control input |
MODE2 | 28 | — | I | Serial port mode control input |
MUTE | 14 | 14 | I | Output mute control input (active high) |
NC | 3 | 2,3,10,11,12,17,18,19 | – | No connection |
OFMT0 | 19 | — | I | Output port data format control input |
OFMT1 | 18 | — | I | Output port data format control input |
OWL0 | 17 | — | I | Output port data word length control input |
OWL1 | 16 | — | I | Output port data word length control input |
RATIO | — | 16 | O |
Input-to-output ratio flag output Low output denotes output rate lower than input rate. High output denotes output rate higher than input rate. |
RCKI | 2 | 1 | I | Reference Clock Input |
RDY | 15 | 15 | O | ASRC Ready Status Output (Active Low) |
RST | 13 | 13 | I | Reset Input (Active Low) |
SDIN | 4 | 4 | I | Audio Serial Data Input |
SDOUT | 23 | 23 | O | Audio Serial Data Output |
TDMI | 20 | 20 | I | TDM Data Input (Connect to DGND when not in use) |
VDD | 22 | 22 | I | Digital Core Supply, 3.3 V |
VIO | 7 | 7 | I | Digital I/O Supply, 1.65 V to VDD |
MIN | MAX | UNIT | ||
---|---|---|---|---|
Supply Voltage | VDD | –0.3 | 4 | V |
VIO | –0.3 | 4 | ||
Digital Input Voltage | –0.3 | 4 | ||
Operating Temperature | –45 | 85 | °C | |
Storage temperature, Tstg | –65 | 150 | °C |
VALUE | UNIT | |||
---|---|---|---|---|
V(ESD) | Electrostatic discharge | Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) | ±3000 | V |
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) | ±1500 |
MIN | NOM | MAX | UNIT | ||
---|---|---|---|---|---|
Supply voltage | VDD | 3 | 3.3 | 3.6 | V |
VIO 1.8 V | 1.65 | 1.8 | 1.95 | ||
VIO 3.3 V | 3 | 3.3 | 3.6 | ||
Operating temperature | –45 | 85 | °C |
THERMAL METRIC(1) | SRC4192 SRC4193 |
UNIT | |
---|---|---|---|
DB (SSOP) | |||
28 PINS | |||
RθJA | Junction-to-ambient thermal resistance | 78.6 | °C/W |
RθJC(top) | Junction-to-case (top) thermal resistance | 38.1 | °C/W |
RθJB | Junction-to-board thermal resistance | 39.3 | °C/W |
ψJT | Junction-to-top characterization parameter | 7.1 | °C/W |
ψJB | Junction-to-board characterization parameter | 38.9 | °C/W |
RθJC(bot) | Junction-to-case (bottom) thermal resistance | N/A | °C/W |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | ||
---|---|---|---|---|---|---|---|
DYNAMIC PERFORMANCE(1) | |||||||
Resolution | 24 | Bits | |||||
fSIN | Input sampling frequency | 4 | 212 | kHz | |||
fSOUT | Output sampling frequency | 4 | 212 | kHz | |||
Input: output sampling ratio | Upsampling | 1:16 | |||||
Downsampling | 16:1 | ||||||
Dynamic range | 44.1 kHz; 48 kHz | BW = 20 Hz to fSOUT/2, –60-dBFS Input fIN = 1 kHz, Unweighted (add 3 dB to spec for A-weighted result) |
140 | dB | |||
48 kHz; 44.1 kHz | 140 | ||||||
48 kHz; 96 kHz | 140 | ||||||
44.1 kHz; 192 kHz | 138 | ||||||
96 kHz; 48 kHz | 141 | ||||||
192 kHz; 12 kHz | 141 | ||||||
192 kHz; 32 kHz | 141 | ||||||
192 kHz; 48 kHz | 141 | ||||||
32 kHz; 48 kHz | 140 | ||||||
12 kHz; 192 kHz | 138 | ||||||
Total harmonic distortion + noise | 44.1 kHz; 48 kHz | BW = 20 Hz to fSOUT/2, 0-dBFS Input fIN = 1 kHz, Unweighted | –140 | dB | |||
48 kHz; 44.1 kHz | –140 | ||||||
48 kHz; 96 kHz | –140 | ||||||
44.1 kHz; 192 kHz | –137 | ||||||
96 kHz; 48 kHz | –140 | ||||||
192 kHz; 12 kHz | –140 | ||||||
192 kHz; 32 kHz | –141 | ||||||
192 kHz; 48 kHz | –141 | ||||||
32 kHz; 48 kHz | –140 | ||||||
12 kHz; 192 kHz | –137 | ||||||
Interchannel gain mismatch | 0 | dB | |||||
Interchannel phase deviation | 0 | ° | |||||
Digital attenuation | Minimum | SRC4193 Only | 0 | dB | |||
Maximum | –127.5 | ||||||
Step Size | 0.5 | ||||||
Mute attenuation | 24-Bit Word Length, A-weighted | –144 | dB | ||||
DIGITAL INTERPOLATION FILTER CHARACTERISTICS | |||||||
Passband | 0.4535 × fSIN | Hz | |||||
Passband ripple | ±0.007 | dB | |||||
Transition band | 0.4535 × fSIN | 0.5465 × fSIN | Hz | ||||
Stop band | 0.5465 × fSIN | Hz | |||||
Stop band attenuation | –144 | dB | |||||
Normal group delay (LGRP = 0) | Decimation Filter On (DFLT = 0) | 102.53125/fSIN | s | ||||
Decimation Filter Off (DFLT = 1) | 102/fSIN | ||||||
Low group delay (LGRP = 1) | Decimation Filter On (DFLT = 0) | 70.53125/fSIN | s | ||||
Decimation Filter Off (DFLT = 1) | 70/fSIN | ||||||
DIGITAL DECIMATION FILTER CHARACTERISTICS | |||||||
Passband | 0.4535 × fSOUT | Hz | |||||
Passband ripple | ±0.008 | dB | |||||
Transition band | 0.4535 × fSOUT | 0.5465 × fSOUT | Hz | ||||
Stop band | 0.5465 × fSOUT | Hz | |||||
Stop band attenuation | –143 | dB | |||||
Group delay – decimation filter | DFLT = 0 for SRC4193 | 36.46875/fSOUT | s | ||||
Direct downsampling | SRC4193 only, DFLT = 1 | 0 | s | ||||
DIGITAL I/O CHARACTERISTICS | |||||||
VIH | High-level input voltage | 0.7 × VIO | VIO | V | |||
VIL | Low-level input voltage | 0 | 0.3 × VIO | V | |||
IIH | High-level input current | 0.5 | 10 | µA | |||
IIL | Low-level input current | 0.5 | 10 | µA | |||
VOH | High-level output voltage | IO = –4 mA | 0.8 × VIO | VIO | V | ||
VOL | Low-level output voltage | IO = +4 mA | 0 | 0.2 × VIO | V | ||
CIN | Input Capacitance | 3 | pF | ||||
POWER SUPPLIES | |||||||
Operating voltage, VDD | 3 | 3.3 | 3.6 | V | |||
Operating voltage, VIO | 1.65 | 3.3 | 3.6 | ||||
Supply current, IDD, power down | VDD = 3.3 V, VIO = 3.3 V, RST = 0, No Clocks | 100 | µA | ||||
SRC4193 only, VDD = 3.3 V, VIO = 3.3 V, PDN Bit = 0, No Clocks |
5 | mA | |||||
Supply current, IDD, dynamic | VDD = 3.3 V, VIO = 3.3 V, fSIN = fSOUT = 192 kHz | 66 | mA | ||||
Supply current, IIO, power down | VDD = 3.3 V, VIO = 3.3 V, RST = 0, No Clocks | 100 | µA | ||||
SRC4193 only, VDD = 3.3 V, VIO = 3.3 V, PDN Bit = 0, No Clocks |
21 | ||||||
Supply current, IIO, dynamic | VDD = 3.3 V, VIO = 3.3 V, fSIN = fSOUT = 192 kHz | 2 | mA | ||||
Total power dissipation, PD, power down | VDD = 3.3 V, VIO = 3.3 V, RST = 0, No Clocks | 660 | µW | ||||
SRC4193 only, VDD = 3.3 V, VIO = 3.3 V, PDN Bit = 0, No Clocks |
16.6 | mW | |||||
Total power dissipation, PD, dynamic | VDD = 3.3 V, VIO = 3.3 V, fSIN = fSOUT = 192 kHz | 225 | mW |
PARAMETER | TEST CONDITIONS | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|---|
REFERENCE CLOCK TIMING | ||||||
RCKI frequency | fSMIN = min (fSIN, fSOUT), fSMAX = max (fSIN, fSOUT) |
128 × fSMIN | 50 | MHz | ||
tRCKIP | RCKI period | 20 | 1/(128 ×fSMIN) | ns | ||
tRCKIH | RCKI pulsewidth high | 0.4 × tRCKIP | ns | |||
tRCKIL | RCKI pulsewidth low | 0.4 × tRCKIP | ns | |||
RESET TIMING | ||||||
tRSTL | RST pulse width low | 500 | ns | |||
Delay following RST rising edge | SRC4193 only | 500 | µs | |||
INPUT SERIAL PORT TIMING | ||||||
tLRIS | LRCKI to BCKI setup time | 10 | ns | |||
tSIH | BCKI pulsewidth high | 10 | ns | |||
tSIL | BCKI pulsewidth low | 10 | ns | |||
tLDIS | SDIN data setup time | 10 | ns | |||
tLDIH | SDIN data hold time | 10 | ns | |||
OUTPUT SERIAL PORT TIMING | ||||||
tDOPD | SDOUT data delay time | 10 | ns | |||
tDOH | SDOUT data hold time | 2 | ns | |||
tSOH | BCKO pulsewidth high | 10 | ns | |||
tSOL | BCKO pulsewidth low | 5 | ns | |||
TDM MODE TIMING | ||||||
tLROS | LRCKO setup time | 10 | ns | |||
tLROH | LRCKO hold time | 10 | ns | |||
tTDMS | TDMI data setup time | 10 | ns | |||
tTDMH | TDMI data hold time | 10 | ns | |||
SPI TIMING | ||||||
CCLK frequency | 25 | MHz | ||||
tCDS | CDATA setup time | 12 | ns | |||
tCDH | CDATA hold time | 8 | ns | |||
tCSCR | CS falling to CCLK rising | 15 | ns | |||
tCFCS | CCLK falling to CS rising | 12 | ns |
12 kHz:192 kHz |
32 kHz:48 kHz |
44.1 kHz:48 kHz | ||
44.1 kHz:96 kHz | ||
44.1 kHz:192 kHz | ||
48 kHz:44.1 kHz | ||
48 kHz:96 kHz | ||
48 kHz:192 kHz | ||
96 kHz:44.1 kHz | ||
96 kHz:48 kHz | ||
96 kHz:192 kHz | ||
192 kHz:12 kHz | ||
192 kHz:32 kHz | ||
192 kHz:44.1 kHz | ||
192 kHz:48 kHz | ||
192 kHz:96 kHz | ||
44.1 kHz:48 kHz | ||
48 kHz:48 kHz | ||
96 kHz:48 kHz | ||
44.1 kHz:48 kHz | ||
48 kHz:96 kHz | ||
44.1 kHz:192 kHz | ||
44.1 kHz:48 kHz | ||
48 kHz:96 kHz | ||
44.1 kHz:48 kHz | ||
48 kHz:48 kHz | ||
96 kHz:48 kHz | ||
192 kHz:44.1 kHz | ||
48k:48k | ||
12 kHz:192 kHz |
32 kHz:48 kHz |
44.1 kHz:48 kHz | ||
44.1 kHz:96 kHz | ||
44.1 kHz:192 kHz | ||
48 kHz:44.1 kHz | ||
48 kHz:96 kHz | ||
48 kHz:192 kHz | ||
96 kHz:44.1 kHz | ||
96 kHz:48 kHz | ||
96 kHz:192 kHz | ||
192 kHz:12 kHz | ||
192 kHz:32 kHz | ||
192 kHz:44.1 kHz | ||
192 kHz:48 kHz | ||
192 kHz:96 kHz | ||
48 kHz:44.1 kHz | ||
48 kHz:96 kHz | ||
192 kHz:192 kHz | ||
48 kHz:44.1 kHz | ||
96 kHz:48 kHz | ||
192 kHz:48 kHz | ||
48 kHz:44.1 kHz | ||
96 kHz:48 kHz | ||
48 kHz:44.1 kHz | ||
48 kHz:96 kHz | ||
44.1 kHz:192 kHz | ||
192k:48k | ||