821054PQF Integrated Device Technology (Idt), 821054PQF Datasheet - Page 3

• Manufacturer Part Number: 821054PQF
• Description: Audio Codec 4ADC / 4DAC 64-Pin PQFP
• Manufacturer: Integrated Device Technology (Idt)
• Type: PCMr

Specifications of 821054PQF

• Package: 64PQFP
• Number Of Channels: 4ADC /4 DAC
• Number Of Dacs: 4
• Operating Supply Voltage: 5 V

IDT821054 QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE
1
2
3
4
5
6
7
Pin Description...................................................................................................................................................................................................7
Functional Description ......................................................................................................................................................................................9
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
2.10 Level Metering .........................................................................................................................................................................................15
2.11 Channel Power Down/Standby Mode......................................................................................................................................................16
2.12 Power Down/Suspend Mode ...................................................................................................................................................................16
Operating The IDT821054 ................................................................................................................................................................................17
3.1
3.2
3.3
3.4
Absolute Maximum Ratings ............................................................................................................................................................................35
Recommended DC Operating Conditions .....................................................................................................................................................35
Electrical Characteristics ................................................................................................................................................................................35
6.1
6.2
6.3
Transmission Characteristics .........................................................................................................................................................................37
7.1
7.2
7.3
MPI/PCM Interface ....................................................................................................................................................................................9
2.1.1
2.1.2
DSP Programming...................................................................................................................................................................................11
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
SLIC Control ............................................................................................................................................................................................12
2.3.1
2.3.2
2.3.3
Hardware Ring Trip .................................................................................................................................................................................12
Interrupt and Interrupt Enable..................................................................................................................................................................12
Debounce Filters .....................................................................................................................................................................................13
Chopper Clock.........................................................................................................................................................................................13
Dual Tone and Ring Generation..............................................................................................................................................................13
FSK SIGNAL GENERATION...................................................................................................................................................................14
Programming Description ........................................................................................................................................................................17
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3.1.6
Power-on Sequence ................................................................................................................................................................................21
Default State After Reset.........................................................................................................................................................................21
Registers Description ..............................................................................................................................................................................22
3.4.1
3.4.2
3.4.3
Digital Interface........................................................................................................................................................................................35
Power Dissipation....................................................................................................................................................................................35
Analog Interface ......................................................................................................................................................................................36
Absolute Gain ..........................................................................................................................................................................................37
Gain Tracking ..........................................................................................................................................................................................37
Frequency Response ..............................................................................................................................................................................37
Microprocessor Interface (MPI) ....................................................................................................................................................9
PCM Bus ....................................................................................................................................................................................10
Signal Processing.......................................................................................................................................................................11
Gain Adjustment.........................................................................................................................................................................11
Impedance Matching ..................................................................................................................................................................11
Transhybrid Balance ..................................................................................................................................................................12
Frequency Response Correction................................................................................................................................................12
SI1 and SI2.................................................................................................................................................................................12
SB1, SB2 and SB3 .....................................................................................................................................................................12
SO1 and SO2 .............................................................................................................................................................................12
Command Type and Format ......................................................................................................................................................17
Addressing the Local Registers..................................................................................................................................................17
Addressing the Global Registers................................................................................................................................................17
Addressing the Coe-RAM...........................................................................................................................................................17
ADDRESSING FSK-RAM...........................................................................................................................................................18
Programming Examples .............................................................................................................................................................18
3.1.6.1
3.1.6.2
3.1.6.3
3.1.6.4
Registers Overview ....................................................................................................................................................................22
Global Registers List ..................................................................................................................................................................24
Local Registers List ....................................................................................................................................................................31
Example of Programming Local Registers .................................................................................................................18
Example of Programming Global Registers................................................................................................................18
Example of Programming the Coefficient-RAM..........................................................................................................18
Example of Programming the FSK-RAM....................................................................................................................19
TABLE OF CONTENTS
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INDUSTRIAL TEMPERATURE RANGE