參數(shù)資料
型號： CDCD5704_07
廠商： Texas Instruments, Inc.
英文描述： Rambus XDR CLOCK GENERATOR
中文描述： Rambus公司的XDR時(shí)鐘發(fā)生器
文件頁數(shù)： 9/19頁
文件大?。?/td> 260K
代理商： CDCD5704_07
www.ti.com
RECOMMENDED AC OPERATING CONDITIONS
DEVICE CHARACTERISTICS
over recommended operating free-air temperature range (unless otherwise noted)
CDCD5704
SCAS823–DECEMBER 2006
MIN
NOM
MAX
11
40
185
60%
700
150
33
0.6%
0.5%
UNIT
ns
ns
ps
t
CYCLE,IN
t
CYC,TEST
t
J,IN
DC
IN
t
r
/t
f
t
cr
/t
cf
f
m,IN
P
m tria
P
m n tria
t
SR
SERIAL INTERFACE TIMING
f
SCLK
SCLK frequency
(5)
t
h(START)
START hold time
(5)
t
w(SCLL)
SCLK low-pulse duration
(5)
t
w(SCLH)
SCLK high-pulse duration
(5)
t
su(START)
START setup time
(5)
t
h(SDATA)
SDATA hold time
(5)
t
su(SDATA)
SDATA setup time
(5)
t
r(SDATA)
/
SDATA/SCLK input rise time
(5)
t
r(SM)
t
f(SDATA)
/
SDATA/SCLK input fall time
(5)
t
f(SM)
t
su(STOP)
STOP setup time
(5)
t
(BUS)
Bus free time
REFCLK/REFCLKB input cycle time
REFCLK/REFCLKB input cycle time for BYPASS
Input |cycle-to-cycle| jitter
(1)
Input duty cycle over 10,000 cycles
(2)
Rise and fall time for REFCLK signal from 20% to 80% of input voltage V
IN
Difference between rise time and fall time of REFCLK signal from 20% to 80%
SSC frequency modulation repeat frequency
(3)
Modulation index (= frequency deviation/center frequency) for triangle modulation
(3)
Modulation index (= frequency deviation/center frequency) for non-triangle modulation
(4)
Input slew rate REFCLK/REFCLKB
7
4
40%
175
ps
ps
kHz
30
1
4
V/ns
0
4
100
kHz
μ
s
μ
s
μ
s
μ
s
ps
ps
4.7
4
4.7
300
250
1000
ns
300
ns
4
μ
s
μ
s
4.7
(1)
(2)
(3)
(4)
RefCLK jitter is measured at (V
– V
)/2 and is the absolute value of the worst-case deviation.
Measured at crossing points for differential clock input or at input threshold voltage V
TH
for single-ended clock input.
If input modulation is used; input modulation is allowed but not required.
The amount of allowed spreading for any non-triangular modulation is determined by the induced downstream tracking skew, which
cannot exceed the skew generated by the specified 0.6% triangular modulation. Typically, the amount of allowed non-triangular
modulation is about 0.5%.
See
Figure 1
for the timing behavior of the serial interface.
(5)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
OVERALL PARAMETER
At 300 MHz and 2.625 V
At 667 MHz and 2.625 V
Over complete supply voltage
range
70
90
85
I
DD
Supply current (= I
VDD
+ I
VDDP
+ I
VDDC
)
mA
115
Supply voltage threshold for power-up control
circuit
DC DEVICE CHARACTERISTICS
V
OX
Differential output crossing-point voltage
(1)
V
COS
Output voltage swing (p-p, single-ended)
(2)
V
OL,ABS
Absolute output low voltage
(3)
Reference voltage for swing control current
V
ISET
IREF
(4)
V
PUC
1.1
1.8
2.2
V
Output load; see
Figure 3
.
0.9
0.3
0.85
1
1.1
0.35
V
V
V
0.325
V
= 2.375 V to 2.625 V, T = 0
°
C
to 70
°
C
0.98
1
1.02
V
(1)
(2)
V
OX
is measured on external divider as shown in
Figure 3
.
V
= (clock output high voltage – clock output low voltage), at the measurement points shown in
Figure 3
, excluding overshoot and
undershoot.
V
OL,ABS
is measured at the clock output of the package, instead of the measurement points of
Figure 3
.
I
REF
ISET
/R
RC
. Tolerance of R
RC
must be
±
1% or smaller.
(3)
(4)
9
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CDCD5704PW 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 Rambus XDR Clock Generator RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
CDCD5704PWG4 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 Rambus XDR Clock Generator RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
CDCD5704PWR 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 Rambus XDR Clock Generator RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
CDCD5704PWRG4 功能描述:時(shí)鐘發(fā)生器及支持產(chǎn)品 Rambus XDR Clock Generator RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56
CDCD5714DGG 制造商:Texas Instruments 功能描述:
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