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CS44800 数据表(PDF) 9 Page - Cirrus Logic

部件名 CS44800
功能描述  8-Channel Digital Amplifier Controller
PDF  80 Pages
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制造商  CIRRUS [Cirrus Logic]
网页  http://www.cirrus.com
标志 CIRRUS - Cirrus Logic

CS44800 数据表(HTML) 9 Page - Cirrus Logic

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DS632F1
9
CS44800
DC ELECTRICAL CHARACTERISTICS
(GND = 0 V, all voltages with respect to ground; DAI_MCLK = 12.288 MHz, XTAL = 24.576 MHz, PWM Switch
Rate = 384 kHz unless otherwise specified.)
4.
Normal operation is defined as RST = HI with a 997 Hz, 0 dBFS input.
5.
Current consumption increases with increasing XTAL clock rates and PWM switch rates. Variance be-
tween DAI clock rates is negligible.
6.
ILC measured with no external loading on the SDA pin.
7.
Valid with PSRR function enabled and the recommended external ADC (CS4461) and filtering.
8.
Power down mode is defined as RST pin = LOW with all clock and data lines held static.
9.
When RST pin = LOW, the internal oscillator is active to provide a valid clock for the SYS_CLK output.
DIGITAL INTERFACE CHARACTERISTICS
(GND = 0 V, all voltages with respect to ground)
10. Serial Port
signals
include:
SYS_CLK, DAI_MCLK, DAI_SCLK, DAI_LRCK, DAI_SDIN1-4
Control Port signals include: SCL/CCLK, SDA/CDOUT, AD0/CS, AD1/CDIN, INT, RST, MUTE
PWM signals include: PWMOUTA1-B4, PSR_MCLK, PSR_SYNC, PSR_DATA, PS_SYNC, GPIO[6:0]
Parameter
Symbol
Min
Typ
Max
Units
Normal Operation (Note 4)
Power Supply Current (Note 5)
VD = 2.5 V
VDX = 3.3 V
VDP = 3.3 V
VLS = 3.3 V
VLC = 3.3 V (Note 6)
ID
IDX
IDP
ILS
ILC
-
-
-
-
-
150
2
1.2
150
250
-
-
-
-
-
mA
mA
mA
µA
µA
Power Dissipation
VD=2.5 V, VDX = VDP = VLS = VLC = 3.3 V
-
387
500
mW
Power Supply Rejection Ratio (Note 7)
(1 kHz)
(60 Hz)
PSRR
-
-
15
40
-
-
dB
dB
Power-Down Mode (Note 8)
Power Supply Current
All Supplies except VDX (Note 9)
Ipd
-80
-
µA
Parameters (Note 10)
Symbol
Min
Typ
Max
Units
High-Level Input Voltage
XTAL
PWM Interface
Serial Audio Interface
Control Interface
VIH
0.7xVDX
0.7xVDP
0.7xVLS
0.7xVLC
-
-
-
-
-
-
-
-
V
V
V
V
Low-Level Input Voltage
XTAL
PWM Interface
Serial Audio Interface
Control Interface
VIL
-
-
-
-
-
-
-
-
0.2xVDX
0.2xVDP
0.2xVLS
0.2xVLC
V
V
V
V
High-Level Output Voltage at Io = -2 mA
PWM Interface
Serial Audio Interface
Control Interface
VOH
VDP-1.0
VLS-1.0
VLC-1.0
-
-
-
-
-
-
V
V
V
Low-Level Output Voltage at Io = 2 mA
PWM Interface
Serial Audio Interface
Control Interface
VOL
-
-
-
-
-
-
0.45
0.45
0.45
V
V
V
Input Leakage Current
Iin
--
±10
µA
Input Capacitance
-
-
8
pF



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