CS4205-KQZ Cirrus Logic Inc, CS4205-KQZ Datasheet - Page 72

• Manufacturer Part Number: CS4205-KQZ
• Description: IC CODEC AC97 I2S 48-LQFP
• Manufacturer: Cirrus Logic Inc
• Type: Audio Codec '97r

Specifications of CS4205-KQZ

• Package / Case: 48-LQFP
• Data Interface: Serial
• Resolution (bits): 18, 20 b
• Number Of Adcs / Dacs: 1 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 90 / 90
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Number Of Adc Inputs: 8
• Number Of Dac Outputs: 3
• Conversion Rate: 48 KSPs
• Interface Type: Serial (5-Wire)
• Resolution: 18 bit, 20 bit
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Number Of Channels: 1 ADC, 1 DAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 598-1182

VIDEO_L, VIDEO_R - Analog Video Audio Source, Inputs, Pins 16 and 17
AUX_L, AUX_R - Analog Auxiliary Source, Inputs, Pins 14 and 15
LINE_OUT_L, LINE_OUT_R - Analog Line-Level, Outputs, Pins 35 and 36
MONO_OUT - Analog Mono Line-Level, Output, Pin 37
Analog Reference, Filter, and Configuration Pins
REFFLT - Internal Reference Voltage, Input, Pin 27
Vrefout - Voltage Reference, Output, Pin 28
72
These inputs form a stereo input pair to the CS4205. It is intended to be used for the audio signal
output of a video device. The maximum allowable input is 1 V
internally biased at the Vrefout voltage reference and require AC-coupling to external circuitry. If these
inputs are not used, they should both be connected to the Vrefout pin or AC-coupled to analog ground.
These inputs form a stereo input pair to the CS4205. The maximum allowable input is 1 V
(sinusoidal). These inputs are internally biased at the Vrefout voltage reference and require AC-coupling
to external circuitry. If these inputs are not used, they should both be connected to the Vrefout pin or
AC-coupled to analog ground.
These signals are analog outputs from the stereo output mixer. The full-scale output voltage for each
output is nominally 1 V
reference and require either AC-coupling to external circuitry or DC-coupling to a buffer op-amp biased
at the Vrefout voltage. These pins need a 680-1000 pF NPO capacitor attached to analog ground.
This signal is an analog output from the stereo-to-mono mixer. The full-scale output voltage for this
output is nominally 1 V
and requires either AC-coupling to external circuitry or DC-coupling to a buffer op-amp biased at the
Vrefout voltage. This pin needs a 680-1000 pF NPO capacitor attached to analog ground.
This signal is the voltage reference used internal to the CS4205. A 0.1 µF and a 2.2 µF ceramic
capacitor with short, wide traces must be connected to this pin. No other connections should be made
to this pin. Do not use an electrolytic 2.2 µF capacitor, use a type Z5U or Y5V ceramic capacitor.
All analog inputs and outputs are centered around Vrefout, nominally 2.4 Volts. This pin may be used to
bias external amplifiers. It can also drive up to 5 mA of DC which can be used for microphone bias.
RMS
RMS
(sinusoidal). This output is internally biased at the Vrefout voltage reference
(sinusoidal). These outputs are internally biased at the Vrefout voltage
RMS
(sinusoidal). These inputs are
CS4205
DS489PP4
RMS