參數(shù)資料
型號: B900J24FXX12T
元件分類: 數(shù)字信號處理
英文描述: 0-BIT, 59.88 MHz, OTHER DSP, PQFP44
文件頁數(shù): 86/100頁
文件大?。?/td> 1547K
代理商: B900J24FXX12T
86
Lucent Technologies Inc.
B900
Advance Data Sheet
Baseband Signal Processor
July 1999
8 Timing Requirements and Characteristics (continued)
8.8
Serial I/O Specifications
The load clocks (SLDA and SLDB) have 50% duty cycle and are offset from each other by half a cycle.
* SLDB for channel B in dual-channel mode.
5-4031A (F)
Figure 19. SIO Active Output Timing Diagram
Table 108. Timing Characteristics for Serial Active Output*
* Capacitance load on SCLK and SDO equals 100 pF.
Ref
Parameter
B900
Unit
VDD = 4.5 V to 5.5 V
VDD = 3.0 V to 3.6 V
TMIN = 12.5 ns
TMIN = 16.7 ns
Min
Max
Min
Max
t38
SLDA Delay (high to low)
16
16
ns
t39
SLDA Delay (low to high)
16
16
ns
t40
Data Delay (high to valid)
22
22
ns
t41
Data Hold (high to invalid)
3
3
ns
SCLK
SLDA
B15
B14
B13
B12
B11
B10
B9
B8
B0
B7
B6
B1
SDO
LDTA = 1
(LDTB = 1)
LDTA = 0
(LDTB = 1)
t39
t40
t41
t38
VOH
VOL
VOH
VOL
VOH
VOL
VOH
VOL
(SLDB)*
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