- 鎮ㄧ従(xi脿n)鍦ㄧ殑浣嶇疆锛�璨疯常IC缍�(w菐ng) > PDF鐩寗10602 > LT1675CS8-1 (Linear Technology)IC MUX RGB HI-SPEED SINGLE 8SOIC PDF璩囨枡涓嬭級
鍙冩暩(sh霉)璩囨枡
| 鍨嬭櫉锛� | LT1675CS8-1 |
| 寤犲晢锛� | Linear Technology |
| 鏂囦欢闋佹暩(sh霉)锛� | 16/16闋� |
| 鏂囦欢澶�?銆�?/td> | 0K |
| 鎻忚堪锛� | IC MUX RGB HI-SPEED SINGLE 8SOIC |
| 妯欐簴鍖呰锛� | 100 |
| 椤炲瀷锛� | 澶氳矾寰╃敤鍣� |
| 鎳夌敤锛� | 椹�(q奴)鍕曞櫒锛岃檿鐞�锛屽垏鎻� |
| 瀹夎椤炲瀷锛� | 琛ㄩ潰璨艰 |
| 灏佽/澶栨锛� | 8-SOIC锛�0.154"锛�3.90mm 瀵級 |
| 渚涙噳鍟嗚ō鍌欏皝瑁濓細 | 8-SOIC |
| 鍖呰锛� | 绠′欢 |
9
LT1675/LT1675-1
16751fb
APPLICATIONS INFORMATION
WU
U
Power Supplies
The LT1675 will function with supply voltages below
卤2V
(4V total), however, to ensure a full 1VP-P video signal
(2VP-P at the output pins), the power supply voltage
should be between
卤4V to 卤6V. The LT1675 is designed
to operate on
卤5V, and at no time should the supplies
exceed
卤6V. The power supplies should be bypassed with
quality tantalum capacitors. It may be necessary to add a
0.01
F or 0.1F in parallel with the tantalum capacitors if
there is excessive ringing on the output waveform. Even
though the LT1675 is well behaved, bypass capacitors
should be placed as close to the LT1675 as possible.
Smallest Package and PC Board Space
The LT1675 has the internal gain set for + 2V/V or 6dB,
because it is designed to drive a double-terminated 50
or
75
cable that has an inherent 6dB loss. There are several
advantages to setting the gain internally. This topology
eliminates six gain set resistors, reduces the pin count of
the package and eliminates stray capacitance on the
sensitive feedback node. The LT1675 fits into the small
SSOP package, and these advantages lead to the smallest
PC board footprint with enhanced performance. The
LT1675-1 eliminates two gain set resistors and is available
in the tiny MSOP package and the cost-effective SO-8
package.
Fast Switching
The key to the LT1675 fast switching speed is Linear
Technology鈥檚 proprietary high speed bipolar process.
Internal switches can change state in less than 1ns, but the
output of the MUX switches in about 2.5ns, as shown in
Figure 1. The additional delay is due to the finite bandwidth
and the slew rate of the current feedback amplifier that
drives the cable.
For minimum ringing, it is important to minimize the load
capacitance on the output of the part. This is normally not
a problem in a controlled impedance environment, but
stray PC board capacitance and scope probe capacitance
can degrade the pulse fidelity. Figure 2 shows the
response of the output to various capacitive loads mea-
sured with a 10pF scope probe.
MEASURED AT PIN 15
RL = 150, 10pF SCOPE PROBE
1675 F02
CL = 20pF
CL = 10pF
CL = 0pF
2V/DIV
Figure 2. Response to Capacitive Loads
1V/DIV
500mV/DIV
0V
3V
SELECT
PIN 10
RED OUT
PIN 15
RED 1 = 1V, RED 2 = 0V
MEASURED BETWEEN 75
BACK TERMINATION
AND 75
LOAD
1675 F01
Figure 1. Toggling at 25MHz
鐩搁棞PDF璩囨枡 |
PDF鎻忚堪 |
|---|---|
| VE-BWK-IV-F1 | CONVERTER MOD DC/DC 40V 150W |
| HR25-7R-4S | CONN RECEPT 4POS FMALE PANEL MT |
| VE-BWJ-IV-F4 | CONVERTER MOD DC/DC 36V 150W |
| HR25-9R-20P | CONN RECEPT 20POS MALE PANEL MT |
| ADA4412-3ARQZ-RL | IC FILTER VID RGB/HD/SD 20QSOP |
鐩搁棞浠ｇ悊鍟�/鎶€琛撳弮鏁�(sh霉) |
鍙冩暩(sh霉)鎻忚堪 |
|---|---|
| LT1675CS8-1#PBF | 鍔熻兘鎻忚堪:IC MUX RGB HI-SPEED SINGLE 8SOIC RoHS:鏄� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 绶氭€� - 瑕栭牷铏曠悊 绯诲垪:- 鐢�(ch菐n)鍝佽畩鍖栭€氬憡:Product Discontinuation 07/Mar/2011 妯欐簴鍖呰:3,000 绯诲垪:OMNITUNE™ 椤炲瀷:瑾�(di脿o)璜у櫒 鎳夌敤:绉诲嫊闆昏┍锛屾墜姗�锛岃闋婚’绀哄櫒 瀹夎椤炲瀷:琛ㄩ潰璨艰 灏佽/澶栨:65-WFBGA 渚涙噳鍟嗚ō鍌欏皝瑁�:PG-WFSGA-65 鍖呰:甯跺嵎 (TR) 鍏跺畠鍚嶇ū:SP000365064 |
| LT1675CS8-1#TR | 鍔熻兘鎻忚堪:IC MUX RGB TRIPLE 250MHZ 8SOIC RoHS:鍚� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 绶氭€� - 瑕栭牷铏曠悊 绯诲垪:- 鐢�(ch菐n)鍝佽畩鍖栭€氬憡:Product Discontinuation 07/Mar/2011 妯欐簴鍖呰:3,000 绯诲垪:OMNITUNE™ 椤炲瀷:瑾�(di脿o)璜у櫒 鎳夌敤:绉诲嫊闆昏┍锛屾墜姗�锛岃闋婚’绀哄櫒 瀹夎椤炲瀷:琛ㄩ潰璨艰 灏佽/澶栨:65-WFBGA 渚涙噳鍟嗚ō鍌欏皝瑁�:PG-WFSGA-65 鍖呰:甯跺嵎 (TR) 鍏跺畠鍚嶇ū:SP000365064 |
| LT1675CS8-1#TRPBF | 鍔熻兘鎻忚堪:IC MUX RGB HI-SPEED SINGLE 8SOIC RoHS:鏄� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 绶氭€� - 瑕栭牷铏曠悊 绯诲垪:- 鐢�(ch菐n)鍝佽畩鍖栭€氬憡:Product Discontinuation 07/Mar/2011 妯欐簴鍖呰:3,000 绯诲垪:OMNITUNE™ 椤炲瀷:瑾�(di脿o)璜у櫒 鎳夌敤:绉诲嫊闆昏┍锛屾墜姗�锛岃闋婚’绀哄櫒 瀹夎椤炲瀷:琛ㄩ潰璨艰 灏佽/澶栨:65-WFBGA 渚涙噳鍟嗚ō鍌欏皝瑁�:PG-WFSGA-65 鍖呰:甯跺嵎 (TR) 鍏跺畠鍚嶇ū:SP000365064 |
| LT1675CSM8-1 | 鍒堕€犲晢:鏈煡寤犲 鍒堕€犲晢鍏ㄧū:鏈煡寤犲 鍔熻兘鎻忚堪:Interface IC |
| LT1676 | 鍒堕€犲晢:LINER 鍒堕€犲晢鍏ㄧū:Linear Technology 鍔熻兘鎻忚堪:50mA, 3V to 80V Low Dropout Micropower Linear Regulator |
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