CS44600-CQZ Cirrus Logic Inc, CS44600-CQZ Datasheet - Page 30

• Manufacturer Part Number: CS44600-CQZ
• Description: IC AMP CTLR DGTL 6CH 64LQFP
• Manufacturer: Cirrus Logic Inc
• Type: Digital Amplifier Controllerr

Specifications of CS44600-CQZ

• Package / Case: 64-LQFP
• Applications: Automotive Systems
• Mounting Type: Surface Mount
• Thd Plus Noise: 0.05 %
• Operating Supply Voltage: 2.5 V
• Supply Current: 150 mA
• Maximum Power Dissipation: 387 mW
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 10 C
• Supply Type: Digital
• Supply Voltage (max): 2.62 V
• Supply Voltage (min): 2.37 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1023 - EVAL BOARD FOR CS44600
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1068-5

30
4.4.2
4.4.3
Auto Rate Detect
The CS44600 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 CS44600 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.
CS44600
DS633F1
52.