CS4385-CQZ(2004) Просмотр технического описания (PDF) - Cirrus Logic
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CS4385-CQZ Datasheet PDF : 56 Pages
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1. PIN DESCRIPTION
DSDA2
DSDB1
DSDA1
VD
GND
MCLK
LRCK
SDIN1
SCLK
M4(TST)
SDIN2
M3(TST)
48 47 46 45 44 43 42 41 40 39 38 37
1
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2
35
3
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4
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5
32
6
CS4385
31
7
30
8
29
9
28
10
27
11
26
12
25
13 14 15 16 17 18 19 20 21 22 23 24
AOUTA2-
AOUTA2+
AOUTB2+
AOUTB2-
VA
GND
AOUTA3-
AOUTA3+
AOUTB3+
AOUTB3-
AOUTA4-
AOUTA4+
CS4385
Pin Name
VD
GND
MCLK
LRCK
SDIN1
SDIN2
SDIN3
SDIN4
SCLK
VLC
RST
FILT+
#
Pin Description
4 Digital Power (Input) - Positive power supply for the digital section. Refer to the Recommended Operat-
ing Conditions for appropriate voltages.
5 Ground (Input) - Ground reference. Should be connected to analog ground.
31
6 Master Clock (Input) - Clock source for the delta-sigma modulator and digital filters. Tables 1-3 illustrate
several standard audio sample rates and the required master clock frequency.
7 Left Right Clock (Input) - Determines which channel, Left or Right, is currently active on the serial audio
data line. The frequency of the left/right clock must be at the audio sample rate, Fs.
8 Serial Audio Data Input (Input) - Input for two’s complement serial audio data.
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13
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9 Serial Clock (Input) - Serial clock for the serial audio interface.
18 Control Port Power (Input) - Determines the required signal level for the control port. Refer to the Rec-
ommended Operating Conditions for appropriate voltages.
19 Reset (Input) - The device enters a low power mode and all internal registers are reset to their default
settings when low.
20 Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.
Requires the capacitive decoupling to analog ground, as shown in the Typical Connection Diagram.
4
DS671A1
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