參數(shù)資料
型號: TPS65950ZXNR
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA209
封裝: 7 X 7 MM, 0.40 MM PITCH, PLASTIC, BGA-209
文件頁數(shù): 51/167頁
文件大?。?/td> 2566K
代理商: TPS65950ZXNR
13
Timing Requirements and Switching Characteristics
13.1 Timing Parameters
13.2 Target Frequencies
TPS65950
Integrated Power Management/Audio Codec
SWCS032 – OCTOBER 2008
www.ti.com
The timing parameter symbols used in the timing requirement and switching characteristic tables are
created in accordance with JEDEC Standard 100. To shorten the symbols, some pin names and other
related terminologies are abbreviated as shown in Table 13-1.
Table 13-1. Timing Parameters
Lowercase Subscripts
Symbol
Parameter
c
Cycle time (period)
d
Delay time
dis
Disable time
en
Enable time
h
Hold time
su
Setup time
START
Start-bit
t
Transition time
v
Valid time
w
Pulse duration (width)
X
Unknown, changing, or don't care level
H
High
L
Low
V
Valid
IV
Invalid
AE
Active edge
FE
First edge
LE
Last edge
Z
High impedance
Table 13-2 assumes testing over the recommended operating conditions.
Table 13-2. TPS65950 Interface Target Frequencies
Target Frequency
I/O Interface
Interface Designation
1.5 V
SmartReflex I2C
I2C interface
Slave HS mode
3.6 Mbps
GP I2C
Slave fast-speed mode
400 kbps
Slave standard mode
100 kbps
USB
HS
480 Mbps
USB
FS
12 Mbps
LS
1.5 Mbps
RealView ICE tool
30 MHz
JTAG
XDS560 and XDS510 tools
30 MHz
Lauterbach tool
30 MHz
Timing Requirements and Switching Characteristics
144
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