CS6422-CS Cirrus Logic Inc, CS6422-CS Datasheet - Page 43

• Manufacturer Part Number: CS6422-CS
• Description: IC CODEC SPKRPHONE 2CH 20-SOIC
• Manufacturer: Cirrus Logic Inc
• Type: Audio Processorr

Specifications of CS6422-CS

• Mounting Type: Surface Mount
• Package / Case: 20-SOIC
• Applications: Speakerphones
• Peak Reflow Compatible (260 C): No
• Termination Type: SMD
• Supply Voltage Max: 5.5V
• Leaded Process Compatible: No
• Supply Voltage Min: 4.5V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 598-1199-5

NI - Network Interface Input, Pin 17
Microcontroller Interface
RST - Active Low Reset Input, Pin 5
DRDY - Active Low Microcontroller Interface Data Ready Input, Pin 6
STROBE - Microcontroller Interface Clock Input, Pin 7
DATA - Microcontroller Interface Data Input, Pin 8
Clock
CLKI - Clock Oscillator Input, Pin 14
CLKO - Clock Oscillator Output, Pin 13
Power Supply
AVDD - Analog Supply, Pin 1
AGND - Analog Ground, Pin 2
DVDD - Digital Supply, Pin 16
DGND - Digital Ground, Pin 15
DS295F1
Input to the network side analog-to-digital converter (far-end input/receive input). This input expects a
single-pole RC anti-aliasing filter with a corner frequency of 8 kHz. Maximum signal level before clipping
at this point is 0.9 V
When RST is held low, the CS6422 is put into a low power mode with all functional blocks idle. When
RST goes high, the CS6422 is started in a known state.
DRDY is a low pulse used to gate valid input data into the Microcontroller Interface.
The rising edge of STROBE latches DATA into the Microcontroller Interface while DRDY is low.
DATA is latched into the Microcontroller Interface on the rising edge of STROBE.
A 20.480 MHz parallel-resonant crystal should be connected between CLKI and CLKO. Alternatively,
CLKI may be driven directly with an 20.480 MHz CMOS level clock.
A 20.480 MHz parallel-resonant crystal should be connected between CLKI and CLKO. CLKO must be
left floating if CLKI is driven directly with a CMOS level clock.
+5 Volt analog power supply.
Analog ground reference.
+5 Volt digital power supply.
Digital ground reference.
rms
(2.5 V
pp
), assuming default settings for RGain.
CS6422
CS6422
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