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参数资料
| 型号： | TAS3218IPZPR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP100 |
| 封装： | GREEN, PLASTIC, TQFP-100 |
| 文件页数： | 40/79页 |
| 文件大小： | 1263K |
| 代理商： | TAS3218IPZPR |
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ELECTRICAL CHARACTERISTICS
MASTER CLOCK SIGNALS
www.ti.com ....................................................................................................................................................................................................... SLES235 – JULY 2008
over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
3.3-V TTL
IOH = 4 mA
2.4
VOH
High-level output voltage,
V
1.8-V LVCMOS (XTL_OUT)
IOH = 0.55 mA
1.44
3.3-V TTL
IOL = 4 mA
0.5
VOL
Low-level output voltage
V
1.8-V LVCMOS (XTL_OUT)
IOL = 0.75 mA
0.396
High-impedance output
IOZ
3.3-V TTL
20
A
current,
1.8-V LVCMOS (XTL_IN)
1
IIL
Low-level input current(1)
VI = VIL
A
3.3-V TTL
1
1.8-V LVCMOS (XTL_IN)
1
IIH
High-level input current(2)
VI = VIH
A
3.3-V TTL
1
DSP clock = 135 MHz,
LRCLKIN/LRCLKOUT = 48
IDVDD
Digital supply current
200
mA
KHz,
XTALI = 24.288 MHz
DSP clock = 135 MHz,
LRCLKIN/LRCLKOUT = 48
IAVDD
Analog supply current
28
mA
KHz,
XTALI = 24.288 MHz
IDVDD
Digital supply current
RESET = LOW
0.1
mA
IAVDD
Analog supply current
RESET = LOW
5
mA
(1)
Value given is for those input pins that connect to an internal pullup resistor as well as an input buffer. For inputs that have a pulldown
resistor or no resistor, IIL is 1 A.
(2)
Value given is for those input pins that connect to an internal pulldown resistor as well as an input buffer. For inputs that have a pullup
resistor or no resistor, IIH is 1 A.
over recommended operating conditions, see Figure 33
PARAMETER
MIN
TYP
MAX
UNIT
24.576
fXTALI
XTALI frequency (1/ tcyc1)
(1)
MHz
(512 Fs)
tcyc1
XTALI cycle time(2)
1/(512 Fs)
ns
fMCLKIN
MCLKIN frequency (1/ tcyc2)
256 Fs
MHz
twMCLKIN
MCLKIN pulse duration(3)
0.4 tcyc2
0.6 tcyc2
ns
fMCLKOUT
MCLKOUT frequency(1/ tcyc3)
256 Fs
MHz
trMCLKOUT
MCLKOUT rise time
CL = 30 pF
10
ns
tfMCLKOUT
MCLKOUT fall time
CL = 30 pF
10
ns
twMCLKOUT
MCLKOUT pulse duration(4)
0.4 tcyc3
0.6 tcyc3
ns
XTALI master clock
MCLKOUT jitter
80
ps
source
Delay time,
tdMIMO
MCLKIN rising edge to MCLKOUT rising MCLKOUT = MCLKIN
17
ns
edge (5)
(1)
Frequency tolerance is 100 ppm (or better) at 25C.
(2)
tcyc1 = 1/ fXTALI
(3)
tcyc2 = 1/ fMCLKIN
(4)
tcyc3 = 1/ fMCLKOUT
(5)
When MCLKOUT is derived from MCLKIN, MCLKOUT jitter = MCLKIN jitter. MCLKOUT has the same duty cycle as MCLKIN when
MCLKOUT = MCLKIN.
Copyright 2008, Texas Instruments Incorporated
45
Product Folder Link(s): TAS3218
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