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參數(shù)資料
| 型號： | ISL59481IRZ-T13 |
| 廠商： | Intersil |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MUX AMP DUAL 500MHZ 48-QFN |
| 標(biāo)準(zhǔn)包裝： | 4,000 |
| 應(yīng)用： | 4:1 多路復(fù)用器-放大器 |
| 電路數(shù)： | 3 |
| -3db帶寬： | 500MHz |
| 轉(zhuǎn)換速率： | 870 V/µs |
| 電流 - 電源： | 92mA |
| 電流 - 輸出 / 通道： | 135mA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-VFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 48-QFN-EP（7x7） |
| 包裝： | 帶卷 (TR) |
8
FN6208.4
May 18, 2007
Pin Equivalent Circuits
Figure 15A illustrates the optimum output load for testing AC
performance. Figure 15B illustrates the optimum output load
when connecting to 50
Ω input terminated equipment.
Application Information
General
The ISL59481 is ideal as the matrix element of high
performance switchers and routers. Key features include
high impedance buffered analog inputs and excellent AC
performance at output loads down to 150
Ω for video cable-
driving. The unity-gain current feedback output amplifiers
are stable operating into capacitive loads and bandwidth is
optimized with a load of 5pF in parallel with a 500
Ω. Total
output capacitance can be split between the PCB
capacitance and an external load capacitor.
Ground Connections
For the best isolation and crosstalk rejection, all GND pins
must connect to the GND plane.
Power-up Considerations
The ESD protection circuits use internal diodes from all pins
the V+ and V- supplies. In addition, a dV/dT-triggered clamp
is connected between the V+ and V- pins, as shown in the
Equivalent Circuits 1 through 4 section of the Pin Description
table. The dV/dT triggered clamp imposes a maximum
supply turn-on slew rate of 1V/s. Damaging currents can
flow for power supply rates-of-rise in excess of 1V/s, such
as during hot plugging. Under these conditions, additional
methods should be employed to ensure the rate of rise is not
exceeded.
Consideration must be given to the order in which power is
applied to the V+ and V- pins, as well as analog and logic
input pins. Schottky diodes (Motorola MBR0550T or
equivalent) connected from V+ to ground and V- to ground
(Figure 16) will shunt damaging currents away from the
internal V+ and V- ESD diodes in the event that the V+
supply is applied to the device before the V- supply. One
Schottky can be used to protect both V+ power supply pins,
and a second for the protection of both V- pins.
IN
V+
V-
LOGIC PIN
V+
V-
GND
33k
21k
+
-
1.2V
V+
V-
OUT
CIRCUIT 3
CIRCUIT 2
CIRCUIT 1
V1-
~1M
Ω
SUBSTRATE 1
V1-
V1+
GNDB1
CAPACITIVELY
COUPLED
ESD CLAMP
GNDC1
GNDA1
V2-
V2+
GNDB2
CAPACITIVELY
COUPLED
ESD CLAMP
GNDC2
GNDA2
CIRCUIT 4B
CIRCUIT 4A
THERMAL HEAT SINK PAD
V2-
~1M
Ω
SUBSTRATE 2
AC Test Circuits
FIGURE 15A. TEST CIRCUIT WITH OPTIMAL OUTPUT LOAD
FIGURE 15B. TEST CIRCUIT FOR MEASURING WITH 50
Ω OR
75
Ω INPUT TERMINATED EQUIPMENT
FIGURE 15C. BACKLOADED TEST CIRCUIT FOR VIDEO
CABLE APPLICATION. BANDWIDTH AND
LINEARITY FOR RL LESS THAN 500Ω WILL BE
DEGRADED.
FIGURE 15. TEST CIRCUITS
ISL59481
CL
50
Ω
VIN
500
Ω
RL
5pF
or
75
Ω
ISL59481
RS
CL
VIN
475
Ω
TEST
5pF
50
Ω
or
75
Ω
50
Ω
or
75
Ω
50
Ω
or
75
Ω
EQUIPMENT
ISL59481
RS
CL
VIN
50
Ω or 75Ω
TEST
5pF
50
Ω
or
75
Ω
50
Ω
or
75
Ω
EQUIPMENT
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL59482 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual, 500MHz Triple, Multiplexing Amplifiers |
| ISL59482EVAL1Z | 功能描述:EVAL BOARD 1 FOR ISL59482 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:* 標(biāo)準(zhǔn)包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| ISL59482IRZ | 功能描述:IC MUX AMP DUAL 500MHZ 48-QFN RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| ISL59482IRZ-T13 | 功能描述:IC MUX AMP DUAL 500MHZ 48-QFN RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| ISL59483 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Dual, 500MHz Triple, Multiplexing Amplifiers |
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