参数资料
型号: CS4215
厂商: Cirrus Logic, Inc.
元件分类: Codec
英文描述: 16-Bit Multimedia Audio Codec
中文描述: 16位多媒体音频编解码器
文件页数: 5/52页
文件大小: 878K
代理商: CS4215
SDIN
SDOUT
tnz
t pd1
thz
tpd1
ts1
th1
TS 1, Bit 7
TS 1, Bit 7
TS 1, Bit 6
SCLK
tpd1
tpd1
tpd2
TSOUT
tpd2
TS 8, Bit 0
TS 1, Bit 6
FSYNC
out
TSIN
FSYNC
in
ts1
th1
th1
ts1
TS 8, Bit 0
tsckl
tsckh
tsckw
SWITCHING CHARACTERISTICS
(T
A
= 25
°
C; VA1, VA2, VD1, VD2 = +5V,
outputs loaded with 30 pF; Input Levels: Logic 0 = 0V, Logic 1 = VD1, VD2)
Parameter
Symbol
Min
Typ
Max
Units
SCLK period
Master Mode, XCLK = 1 (Note 8)
Slave Mode (XCLK = 0)
tsckw
tsckw
-
1/(Fs*bpf)
-
-
-
s
80
ns
SCLK high time
Slave Mode, XCLK = 0 (Note 9)
tsckh
25
-
-
ns
SCLK low time
Slave Mode, XCLK = 0 (Note 9)
tsckl
25
-
-
ns
Input Setup Time
ts1
th1
15
-
-
ns
Input Hold Time
10
-
-
ns
Input Transition Time
10% to 90% points
-
-
10
ns
Output delay
tpd1
-
-
28
ns
SCLK to TSOUT
tpd2
-
-
30
ns
Output to Hi-Z state
Timeslot 8, bit 0
thz
tnz
-
-
12
ns
Output to non-Hi-Z
Timeslot 1, bit 7
15
-
-
ns
Input Clock Frequency
Crystals
-
-
-
27
13.5
MHz
MHz
CLKIN (Note 10)
1.024
Input Clock (CLKIN) low time
30
-
-
ns
Input Clock (CLKIN) high time
30
-
-
ns
Sample rate
Fs
4
-
50
kHz
RESET low time
(Note 11)
500
-
-
ns
Notes:
8. In Master mode with BSEL1,0 set to 64 or 128 bits per frame (bpf), the SCLK duty cycle is 50%.
When BSEL1,0 is set to 256 bpf, SCLK will have the same duty cycle as CLKOUT.
See Internal Clock Generation section.
9. In Slave mode, FSYNC and SCLK must be derived from the master clock running the codec
(CLKIN, XTAL1, XTAL2).
10. Sample rate specifications must not be exceeded.
11. After powering up the CS4215, RESET should be held low for 50 ms to allow the voltage
reference to settle.
CS4215
DS76F2
5
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