Features: ` Four operating modes:
Sample Rate Conversion (SRC) mode
AD/DA mode
SLAVE-VCO mode
SLAVE-VCXO mode
` Full digital sample rate conversion over a wide range of input sample rates
` Fast and automatic detection and locking to the input sample rate with continuous tracking
` Digital Phase-Locked Loop (PLL) with adaptive bandwidth which removes jitter on the digital audio input
` Audio outputs (soft) muted during loop acquisition
` Full linear phase processing based on all-FIR filtering
` Integrated full digital IEC 958 demodulator for digital input signals (AES/EBU or SPDIF format) with intelligent error handling
` Extended input sample frequency range
` IEC 958 Channel Status (CS) and User Channel (UC) outputs
` On-chip CS and/or UC demodulation and buffering (consumer and professional format)
` Dedicated subcode processing for Compact Disc (CD)
` Final output quantization to 16, 18 or 20 bits with optional in-audio-band noise shaping
` Bitstream input and output for coupling with 1-bit analog-to-digital conversion (ADC) and digital-to-analogconversion (DAC)
` I2S and Japanese serial input formats supported for SRC and DAC functions
` I2S and Japanese serial output formats supported for SRC and ADC functions
` I2S and Japanese 4* oversampled serial output available for SRC and ADC functions
` 8-bit digital gain/attenuation control
` Switchable Digital Signal Processor (DSP)-interface (I2S input and output) for additional audio processing
` Additional clock outputs available at 768, 384, 256 and 128fso
` 3-line serial microcontroller interface, compatible with the Philips CD I.C. protocol (HCL)
` 5 V power supply
` 0.7 mm double metal Complementary Metal Oxide Semiconductor (CMOS)
` SRC THD + N:
-113 dB over the 0 to 20 kHz band (1 kHz, 20 bits input and output) (see Fig.3)
-95 dB over the 0 to 20 kHz band (1 kHz, 16 bits input and output)
` Pass band ripple smaller than ±0.004 dB for up-sampling and down-sampling filters
` Stop band suppression:
selectable between 70 dB and 50 dB for 64*up-sampling filters
80 dB for 128´ down-sampling filters
` Microcontroller operated and stand-alone mode.Application` Professional audio equipment for:
mixing
recording
editing
broadcasting
` CD-Recordable (CD-R)
` Digital Speaker Systems (DSS)
` Digital Compact Cassette recorders (DCC)
` Digital Audio Tape (DAT) and MD recorders
` Digital amplifiers
` Jitter killers.Pinout
SpecificationsIn accordance with the Absolute Maximum Rating System (IEC 134).
| SYMBOL |
PARAMETER |
CONDITIONS |
MIN. |
TYP. |
MAX. |
UNIT |
| VDD |
supply voltage |
|
-0.5 |
- |
+6.5 |
V |
| IDD |
supply current |
|
- |
- |
200 |
mA |
| Vi |
input voltage |
|
-0.5 |
- |
VDD + 0.5 |
V |
| Ii(max) |
maximum input current |
|
- |
- |
10 |
mA |
| Io(max) |
maximum output current |
|
- |
- |
10 |
mA |
| Ptot |
total power dissipation |
|
- |
1030 |
- |
mW |
| Tstg |
storage temperature |
|
-65 |
- |
+150 |
°C |
| Tamb |
operating ambient temperature |
|
0 |
- |
+70 |
°C |
| Ves |
electrostatic handling |
HBM; note 1 |
-3000 |
- |
+3000 |
V |
| |
MM; note 2 |
-300 |
- |
+300 |
V |
Notes
1. Human Body Model (HBM): C = 100 pF; R = 1.5 k; 3 zaps positive and 3 zaps negative.
2. Machine Model (MM): C = 200 pF; L = 2.5 mH; R = 25 ; 3 zaps positive and 3 zaps negative.
DescriptionThe TDA1373H is a General Digital Input (GDIN) device for audio signals which is able to perform a high-quality sample rate conversion of digital audio signals (SRC mode). The device reads several serial input formats and signals in the IEC 958 digital audio format (also known as AES/EBU or SPDIF signals). For this purpose a full Audio Digital Input Circuit (ADIC) is present in the device.
An internal digital PLL results in extensive jitter removal from incoming digital audio signals without any analog loop electronics. The standard 20 bit output word length can be limited to 16 or 18 bits by means of 'in-audio-band noise shaping'.
The TDA1373H can also be reused for Bitstream ADC and DAC conversion (AD/DA mode). The internal digital PLL can be reconfigured to operate the GDIN in a slave mode, where the output sample frequency of the device is locked to the incoming sample rate (SLAVE-VCO and SLAVE-VCXO modes).
The combination of an ADIC function, sample rate conversion and Bitstream ADC and DAC results in a device with a highly versatile functionality and large replacement value in consumer and professional audio sets.
TDA1373H Data Sheet
