参数资料
型号: UDA1342TSDB-T
厂商: NXP SEMICONDUCTORS
元件分类: 消费家电
英文描述: Audio CODEC
中文描述: SPECIALTY CONSUMER CIRCUIT, PDSO28
封装: 5.30 MM, ROHS COMPLIANT, PLASTIC, MO-150, SSOP-28
文件页数: 26/48页
文件大小: 304K
代理商: UDA1342TSDB-T
2000 Jul 31
32
Philips Semiconductors
Product specication
Audio CODEC
UDA1342TS
16 TIMING
VDDD =VDDA(ADC) =VDDA(DAC) = 2.7 to 3.6 V; Tamb = 20 to +85 °C; all voltages referenced to ground; unless otherwise
specied.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
System clock timing; note 1 (see Fig.11)
Tsys
system clock cycle time
fsys = 256fs
35
81
250
ns
fsys = 384fs
23
54
170
ns
fsys = 512fs
17
41
130
ns
fsys = 768fs
17
27
90
ns
tCWL
system clock LOW time
fsys < 19.2 MHz
0.3Tsys
0.7Tsys
ns
fsys ≥ 19.2 MHz
0.4Tsys
0.6Tsys
ns
tCWH
system clock HIGH time
fsys < 19.2 MHz
0.3Tsys
0.7Tsys
ns
fsys ≥ 19.2 MHz
0.4Tsys
0.6Tsys
ns
Serial interface input/output data timing (see Fig.12)
fBCK
bit clock frequency
128fs
Hz
Tcy(BCK)
bit clock cycle time
Tcy(s) = sample
frequency cycle time
1
128Tcy(s) s
tBCKH
bit clock HIGH time
30
ns
tBCKL
bit clock LOW time
30
ns
tr
rise time
20
ns
tf
fall time
20
ns
tsu(WS)
word select set-up time
10
ns
th(WS)
word select hold time
10
ns
tsu(DATAI)
data input set-up time
10
ns
th(DATAI)
data input hold time
10
ns
th(DATAO)
data output hold time
0
ns
td(DATAO-BCK)
data output to bit clock delay
30
ns
td(DATAO-WS)
data output to word select delay
30
ns
L3-bus interface timing (see Figs 13 and 14)
tr
rise time
note 2
10
ns/V
tf
fall time
note 2
10
ns/V
Tcy(CLK)L3
L3CLOCK cycle time
note 3
500
ns
tCLK(L3)H
L3CLOCK HIGH time
250
ns
tCLK(L3)L
L3CLOCK LOW time
250
ns
tsu(L3)A
L3MODE set-up time in address
mode
190
ns
th(L3)A
L3MODE hold time in address
mode
190
ns
tsu(L3)D
L3MODE set-up time in data
transfer mode
190
ns
th(L3)D
L3MODE hold time in data
transfer mode
190
ns
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