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參數(shù)資料
| 型號： | SY89846UMG |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK BUFF MUX 2:5 2GHZ 32-MLF |
| 標準包裝： | 60 |
| 系列： | Precision Edge® |
| 類型： | 扇出緩沖器（分配），多路復用器 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 2:5 |
| 差分 - 輸入:輸出： | 是/是 |
| 輸入： | CML，LVDS，PECL |
| 輸出： | LVPECL |
| 頻率 - 最大： | 2GHz |
| 電源電壓： | 2.375 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-VFQFN 裸露焊盤，32-MLF? |
| 供應商設備封裝： | 32-MLF?（5x5） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1084 (CN2011-ZH PDF) |
| 其它名稱： | 576-1617 |
Micrel, Inc.
SY89846U
Oct. 1, 2013
M9999-072211B
hbwhelp@micrel.com or (408) 955-1690
3
Pin Description
Pin Number
Pin Name
Pin Function
1,8
VT0, VT1
Input Termination Center-Tap: Each side of a differential input pair terminates to
the VT pin. The VT pin provides a center-tap for each input (IN, /IN) to a
termination network for maximum interface flexibility. See “Input Interface
Applications” subsection.
2, 3
6, 7
IN0, /IN0
IN1, /IN1
Differential Inputs: These input pairs are the differential signal inputs to the device.
These inputs accept AC- or DC-coupled signals as small as 100mV. The input
pairs internally terminate to a VT pin through 50. Each input has level shifting
resistors of 3.72k
to VCC. This allows a wide input voltage range from VCC to
GND. See Figure 3a, Simplified Differential Input Stage for details. Note that
these inputs will default to a valid (either HIGH or LOW) state if left open. See
“Input Interface Applications” subsection.
10, 11, 30, 31
GND,
Exposed Pad
Ground. Exposed pad must be connected to a ground plane that is the same
potential as the ground pins.
4
OE
Single-Ended Input: This TTL/CMOS input disables and enables the Q0-Q4
outputs. It is internally connected to a 25k
pull-up resistor and will default to a
logic HIGH state if left open. When disabled, Q goes LOW and /Q goes HIGH. OE
being synchronous, outputs will be enabled/disabled following a rising and a falling
edge of the input clock. VTH = VCC/2.
5
SEL
Single-Ended Input: This single-ended TTL/CMOS-compatible input selects the
inputs to the multiplexer. Note that this input is internally connected to a 25k pull-
up resistor and will default to logic HIGH state if left open. VTH = VCC/2.
9, 32
VREF-AC1
VREF-AC0
Reference Voltage: These outputs bias to VCC–1.2V. They are used for AC-
coupling inputs IN and /IN. Connect VREF-AC directly to the corresponding VT pin.
Bypass with 0.01F low ESR capacitor to VCC. Due to limited drive capability, the
VREF-AC pin is only intended to drive its respective VT pin. Maximum sink/source
current is ±0.5mA. See
“Input Interface Applications” subsection.
12, 13, 16, 19,
22, 25, 28, 29
VCC
Positive Power Supply: Bypass with 0.1F||0.01F low ESR capacitors as close to
the VCC pins as possible.
27, 26
24, 23
21, 20
18, 17
15, 14
Q0, /Q0
Q1, /Q1
Q2, /Q2
Q3, /Q3
Q4, /Q4
LVPECL Differential Output Pairs: Differential buffered output copies of the
selected input signal. The output swing is typically 800mV. Unused output pairs
may be le
ft floating with no impact on jitter. See “LVPECL Output Termination”
subsection. Normally terminated
with 50 to VCC-2V. These differential LVPECL
outputs are a logic function of the IN0, IN1, and SEL inputs. See
“Truth Table”
below.
Truth Table
Inputs
Outputs
IN0
/IN0
IN1
/IN1
SEL
Q
/Q
0
1
X
0
1
0
X
0
1
0
X
0
1
0
1
X
1
0
1
0
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SY89846UMG TR | 功能描述:緩沖器和線路驅動器 1:5 LVPECL Fanout Buffer w/ 2:1 FSI Input MUX RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
| SY89846UMGTR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:1.5GHz Precision, LVPECL 1:5 Fanout with 2:1 MUX and Fail Safe Input with Internal Termination |
| SY89847U | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:1.5GHz Precision, LVDS 1:5 Fanout with 2:1 MUX and Fail Safe Input with Internal Termination |
| SY89847U_10 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:1.5GHz Precision, LVDS 1:5 Fanout with 2:1 |
| SY89847UMG | 功能描述:緩沖器和線路驅動器 1:5 LVDS Fanout Buffer w/ 2:1 FSI Input MUX RoHS:否 制造商:Micrel 輸入線路數(shù)量:1 輸出線路數(shù)量:2 極性:Non-Inverting 電源電壓-最大:+/- 5.5 V 電源電壓-最小:+/- 2.37 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Reel |
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