CS42438-CMZ Cirrus Logic Inc, CS42438-CMZ Datasheet - Page 52
![IC CODEC 108DB 192KHZ 52-MQFP](/photos/6/80/68086/cs42438-cmz_sml.jpg)
CS42438-CMZ
Manufacturer Part Number
CS42438-CMZ
Description
IC CODEC 108DB 192KHZ 52-MQFP
Manufacturer
Cirrus Logic Inc
Type
Audio Codecr
Specifications of CS42438-CMZ
Package / Case
52-MQFP, 52-PQFP
Data Interface
Serial
Resolution (bits)
24 b
Number Of Adcs / Dacs
6 / 8
Sigma Delta
Yes
Dynamic Range, Adcs / Dacs (db) Typ
105 / 108 (Differential), 102 / 105 (Single-Ended)
Voltage - Supply, Analog
3.14 V ~ 5.25 V
Voltage - Supply, Digital
3.14 V ~ 3.47 V
Operating Temperature
-55°C ~ 150°C
Mounting Type
Surface Mount
Number Of Adc Inputs
6
Number Of Dac Outputs
8
Conversion Rate
192 KSPS
Interface Type
Serial (I2S, SPI)
Resolution
24 bit
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 10 C
Number Of Channels
6 ADC/8 DAC
Thd Plus Noise
- 98 dB ADC / - 98 dB DAC, - 95 dB ADC / - 95 dB DAC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1500 - BOARD EVAL FOR CS42438 CODEC
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
598-1032
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CS42438-CMZ
Manufacturer:
LT
Quantity:
413
Company:
Part Number:
CS42438-CMZ
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
Company:
Part Number:
CS42438-CMZR
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
52
8.1.2
Passive Input Filter w/Attenuation
Some applications may require signal attenuation prior to the ADC. The full-scale input voltage will scale
with the analog power supply voltage. For VA = 5.0 V, the full-scale input voltage is approximately
2.8 Vpp, or 1 Vrms (most consumer audio line-level outputs range from 1.5 to 2 Vrms).
Figure 23
pedance on the analog inputs, the full distortion performance cannot be realized. Also, the resistor divider
circuit will determine the input impedance into the input filter. In the circuit shown in
impedance is approximately 5 kΩ. By doubling the resistor values, the input impedance will increase to
10 kΩ. However, in this case the distortion performance will drop due to the increase in series resistance
on the analog inputs.
shows a passive input filter with 6 dB of signal attenuation. Due to the relatively high input im-
Figure 23. Passive Input Filter w/Attenuation
2.5 kΩ
2.5 kΩ
2.5 kΩ
2.5 k
2.5 k
2.5 k
Ω
Ω
Ω
4.7 μF
10 μF
10 μF
10 μF
2700 pF
2700 pF
2700 pF
C0G
C0G
C0G
AIN1+,2+,3+,4+
AIN1-,2-,3-,4-
AIN5A,6A
AIN5B,6B
ADC1-2
ADC3
Figure
CS42438
23, the input
DS646F2