CS44800-CQZ Cirrus Logic Inc, CS44800-CQZ Datasheet - Page 31
![IC,Audio Power Amplifier Controller,CMOS,QFP,64PIN](/photos/7/4/70403/mfg_cs44800_series_sml.jpg)
CS44800-CQZ
Manufacturer Part Number
CS44800-CQZ
Description
IC,Audio Power Amplifier Controller,CMOS,QFP,64PIN
Manufacturer
Cirrus Logic Inc
Type
Digital Amplifier Controllerr
Datasheet
1.CS44800-CQZR.pdf
(80 pages)
Specifications of CS44800-CQZ
Applications
Automotive Systems
Mounting Type
Surface Mount
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1532 - BOARD EVAL FOR CS44800 PWM CTRL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
598-1070
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CS44800-CQZ
Manufacturer:
Cirrus Logic Inc
Quantity:
135
Company:
Part Number:
CS44800-CQZ
Manufacturer:
Cirrus Logic Inc
Quantity:
10 000
DS632F1
4.4.2
4.4.3
Auto Rate Detect
The CS44800 will automatically determine the incoming sample rate, DAI_LRCK, to master clock,
DAI_MCLK, ratio and configure the appropriate internal clock divider such that the sample rate convertor
receives the required clock rate. A minimum DAI_MCLK rate of 128Fs is required for proper operation.
The supported DAI_MCLK to DAI_LRCK ratios are shown in
De-Emphasis
The CS44800 includes on-chip digital de-emphasis filters. The de-emphasis feature is included to accom-
modate older audio recordings that utilize pre-emphasis equalization as a means of noise reduction.
Figure 23
portionally with changes in sample rate, Fs. The required de-emphasis filter for 32 kHz, 44.1 kHz, or
48 kHz is selected via the de-emphasis control bits in
shows the de-emphasis curve. The frequency response of the de-emphasis curve will scale pro-
-10dB
Gain
0dB
dB
Figure 23. De-Emphasis Curve
3.183 kHz
T1=50 µs
F1
10.61 kHz
“Misc. Configuration (address 04h)” on page
F2
T2 = 15 µs
Table 1 on page
Frequency
26.
CS44800
52.
31