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參數(shù)資料
| 型號(hào)： | SN0305042RTHR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 時(shí)鐘及定時(shí) |
| 英文描述： | 1803 SERIES, LOW SKEW CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQCC24 |
| 封裝： | GREEN, PLASTIC, VQFN-24 |
| 文件頁數(shù)： | 1/26頁 |
| 文件大小： | 606K |
| 代理商： | SN0305042RTHR |
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FEATURES
VSS(1)
S0
VDD1
Y1
VDD1
VDD3
18
17
16
15
14
13
1
2
3
4
5
6
EN
VDDPECL
IN
VDDPECL
VBB
24
23
22
21
20
19
7
8
9
10
11
12
S2
V
D
0
Y0
V
D
0
S1
V
S
V
D
2
Y2
V
D
2
Y3
RGE PACKAGE
(TOP VIEW)
(1) Thermal pad must be connected to VSS.
P0024-01
DESCRIPTION
(1) Thermal pad must be connected to VSS.
P0025-01
18
17
16
15
14
13
S0
VDD1
Y1
VDD1
VDD3
1
2
3
4
5
6
7
8
9
10
1
12
24
23
22
21
20
19
EN
VDDPECL
IN
VDDPECL
VBB
S2
V
D
0
Y0
V
D
0
S1
V
S
V
D
2
Y2
V
D
2
Y3
VSS(1)
RTH PACKAGE
(TOP VIEW)
CDCM1804
SCAS697E – JULY 2003 – REVISED MAY 2005
1:3 LVPECL CLOCK BUFFER + ADDITIONAL
LVCMOS OUTPUT AND PROGRAMMABLE DIVIDER
The CDCM1804 is characterized for operation from
–40
°C to 85°C.
Distributes One Differential Clock Input to
Three LVPECL Differential Clock Outputs and
For use in single-ended driver applications, the
CDCM1804 also provides a VBB output terminal that
One LVCMOS Single-Ended Output
can be directly connected to the unused input as a
Programmable Output Divider for Two
common-mode voltage reference.
LVPECL Outputs and LVCMOS Output
Low-Output Skew 15 ps (Typical) for
Clock-Distribution Applications for LVPECL
Outputs; 1.6-ns Output Skew Between
LVCMOS and LVPECL Transitions Minimizing
Noise
VCC Range 3 V–3.6 V
Signaling Rate Up to 800-MHz LVPECL and
200-MHz LVCMOS
Differential Input Stage for Wide
Common-Mode Range
Provides VBB Bias Voltage Output for
Single-Ended Input Signals
Receiver Input Threshold
±75 mV
24-Terminal QFN Package (4 mm × 4 mm)
Accepts Any Differential Signaling:
LVDS, HSTL, CML, VML, SSTL-2, and
Single-Ended: LVTTL/LVCMOS
The CDCM1804 clock driver distributes one pair of
differential clock inputs to three pairs of LVPECL
differential clock outputs Y[2:0] and Y[2:0], with mini-
mum skew for clock distribution. The CDCM1804 is
specifically designed for driving 50-
transmission
lines.
Additionally,
the
CDCM1804
offers
a
single-ended LVCMOS output Y3. This output is
delayed by 1.6 ns over the three LVPECL output
stages to minimize noise impact during signal tran-
sitions.
The CDCM1804 has three control terminals, S0, S1,
and S2, to select different output mode settings. The
S[2:0] terminals are 3-level inputs and therefore allow
up to 33 = 27 combinations. Additionally, an enable
terminal (EN) is provided to disable or enable all
outputs simultaneously. The EN terminal is a 3-level
input as well and extends the number of settings to
2
× 27 = 54. See Table 1 for details.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright 2003–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN0305042RTHT | 功能描述:時(shí)鐘緩沖器 1:3 LVPECL Clock Bfr & Add LVCMOS Out RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel |
| SN0306011PPM | 制造商:Texas Instruments 功能描述: |
| SN0307009BGHK | 制造商:Texas Instruments 功能描述: |
| SN0307009BZHK | 制造商:Texas Instruments 功能描述: |
| SN0307009GHK | 制造商:Texas Instruments 功能描述: |
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