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參數(shù)資料
| 型號： | HA4201 |
| 廠商： | Intersil Corporation |
| 英文描述： | 480MHz, 1 x 1 Video Crosspoint Switch with Tally Output |
| 中文描述： | 480MHz，1 × 1視頻交叉點開關(guān)Tally輸出 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大小： | 79K |
| 代理商： | HA4201 |
4
Control Signals
EN - The ENABLE input is a TTL/CMOS compatible, active
high input. When driven low this input forces the output to a
true high impedance state and reduces the power
dissipation by two orders of magnitude. The EN input has no
on-chip pull-up resistor, so it must be connected to a logic
high (recommend V+) if the enable function isn’t utilized.
Tally - The Tally output is an open collector PNP transistor
connected to V+. When EN = 1, the PNP transistor is enabled
and current is delivered to the load. When the crosspoint is
disabled, the Tally output presents a very high impedance to
the external circuitry. Several Tally outputs may be wire OR’d
togethertogeneratecomplexcontrolsignals,asshownwiththe
HA4404 in the application circuits below. The Tally load may be
terminated to GND or to V- as long as the continuous output
current doesn’t exceed 3mA (6mA at 50% duty cycle, etc.).
Switcher/Router Applications
Figure 1 illustrates one possible implementation of a
wideband, low power, 4 x 4 switcher/router. A 4 x 4
switcher/router allows any of the four outputs to be driven by
any one of the four inputs (e.g. each of the four inputs may
connect to a different output, or an input may connect to
multiple outputs). This application utilizes the HA4201 for the
input buffer, the HA4404 (4 x 1 crosspoint switch) as the
switch matrix, and the HFA1112 (programmable gain buffer)
as the gain of two output driver. Figure 2 details a 16 x 1
switcher (basically a 16:1 mux) which uses the HA4201 in a
cascaded stage configuration to minimize capacitive loading
at each output node, thus increasing system bandwidth.
Power Up Considerations
No signals should be applied to the analog or digital inputs
before the power supplies are activated. Latch-up may occur
if the inputs are driven at the time of power up. To prevent
latch-up, the input currents during power up must not exceed
the values listed in the Absolute Maximum Ratings.
Intersil’s Crosspoint Family
Intersil offers a variety of 1 x 1 and 4 x 1 crosspoint switches.
In addition to the HA4201, the 1 x 1 family includes the
HA4600 which is an essentially similar device but without the
Tally output. The 4 x 1 family is comprised of the HA4314,
HA4404, and HA4344. The HA4314 is a 14 lead basic 4 x 1
crosspoint. The HA4404 is a 16 lead device with Tally
outputs to indicate the selected channel. The HA4344 is a
16 lead crosspoint with synchronized control lines (A0, A1,
CS). With synchronization, the control information for the
next channel switch can be loaded into the crosspoint
without affecting the current state. On a subsequent clock
edge the stored control state effects the desired channel
switch.
-
INPUT BUFFERS
SWITCH MATRIX
OUTPUT BUFFERS
(HFA1112 OR HFA1115)
OUT
SOURCE3
IN0
T0
HA4404
CS
T3
IN3
EN
OUT0
10k
75
R
S
HA4201
OUT
IN0
T0
HA4404
CS
T3
IN3
OUT
IN0
T0
HA4404
CS
T3
IN3
OUT
IN0
T0
HA4404
CS
T3
IN3
75
OUT1
75
R
S
R
S
R
S
R
S
X2
+
OUT
SOURCE0
EN
75
R
S
HA4201
OUT
SOURCE1
75
SOURCE2
75
OUT2
75
OUT3
75
10k
X2
X2
X2
-
+
-
+
-
+
FIGURE 1. 4 x 4 SWITCHER/ROUTER APPLICATION
HA4201
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HA4201CB | 480MHz, 1 x 1 Video Crosspoint Switch with Tally Output |
| HA4404 | 330MHz, 4 x 1 Video Crosspoint Switch with Tally Outputs |
| HA4404BCB | 330MHz, 4 x 1 Video Crosspoint Switch with Tally Outputs |
| HA4404B | 330MHz, 4 x 1 Video Crosspoint Switch with Tally Outputs |
| HA4404BCB96 | 330MHz, 4 x 1 Video Crosspoint Switch with Tally Outputs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HA4201_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:480MHz, 1x1 Video Crosspoint Switch with Tally Output |
| HA4201CB | 制造商:Rochester Electronics LLC 功能描述:SWITCH 1X1 VIDEO 480MHZ TALLY 8SOIC COM - Bulk |
| HA4201CB96 | 功能描述:IC CROSSPOINT SWITCH 1X1 8-SOIC RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝 |
| HA4201CBZ96 | 功能描述:模擬和數(shù)字交叉點 IC SWITCH 1X1 VID 480MHZ TALLY COM RoHS:否 制造商:Micrel 配置:2 x 2 封裝 / 箱體:MLF-16 數(shù)據(jù)速率:10.7 Gbps 輸入電平:CML, LVDS, LVPECL 輸出電平:CML 電源電壓-最大:3.6 V 電源電壓-最小:2.375 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 產(chǎn)品:Digital Crosspoint 封裝:Tube |
| HA4201CP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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