- 鎮ㄧ従(xi脿n)鍦ㄧ殑浣嶇疆锛�璨�(m菐i)璩�(m脿i)IC缍�(w菐ng) > PDF鐩寗10602 > LT1675CMS8-1 (Linear Technology)IC MUX RGB SGL HS W/CFA 8-MSOP PDF璩囨枡涓嬭級
鍙冩暩(sh霉)璩囨枡
| 鍨嬭櫉(h脿o)锛� | LT1675CMS8-1 |
| 寤�(ch菐ng)鍟嗭細 | Linear Technology |
| 鏂囦欢闋�(y猫)鏁�(sh霉)锛� | 16/16闋�(y猫) |
| 鏂囦欢澶у皬锛� | 0K |
| 鎻忚堪锛� | IC MUX RGB SGL HS W/CFA 8-MSOP |
| 妯�(bi膩o)婧�(zh菙n)鍖呰锛� | 50 |
| 椤�(l猫i)鍨嬶細 | 澶氳矾寰�(f霉)鐢ㄥ櫒 |
| 鎳�(y墨ng)鐢細 | 椹�(q奴)鍕�(d貌ng)鍣�锛岃檿鐞�锛屽垏鎻� |
| 瀹夎椤�(l猫i)鍨嬶細 | 琛ㄩ潰璨艰 |
| 灏佽/澶栨锛� | 8-TSSOP锛�8-MSOP锛�0.118"锛�3.00mm 瀵級 |
| 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 | 8-MSOP |
| 鍖呰锛� | 绠′欢 |
绗�1闋�(y猫)绗�2闋�(y猫)绗�3闋�(y猫)绗�4闋�(y猫)绗�5闋�(y猫)绗�6闋�(y猫)绗�7闋�(y猫)绗�8闋�(y猫)绗�9闋�(y猫)绗�10闋�(y猫)绗�11闋�(y猫)绗�12闋�(y猫)绗�13闋�(y猫)绗�14闋�(y猫)绗�15闋�(y猫)鐣�(d膩ng)鍓嶇16闋�(y猫)
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(gu膩n)PDF璩囨枡 |
PDF鎻忚堪 |
|---|---|
| HR25-7R-4PA | CONN RECEPT 4POS MALE SOLDER PCB |
| VE-BWL-IV-F4 | CONVERTER MOD DC/DC 28V 150W |
| HR25-9R-20S | CONN RECEPT 20POS FMALE PANEL MT |
| LT1675CS8-1#TR | IC MUX RGB TRIPLE 250MHZ 8SOIC |
| VE-BWL-IV-F3 | CONVERTER MOD DC/DC 28V 150W |
鐩搁棞(gu膩n)浠ｇ悊鍟�/鎶€琛�(sh霉)鍙冩暩(sh霉) |
鍙冩暩(sh霉)鎻忚堪 |
|---|---|
| LT1675CMS8-1#PBF | 鍔熻兘鎻忚堪:IC MUX RGB SGL HS W/CFA 8-MSOP RoHS:鏄� 椤�(l猫i)鍒�:闆嗘垚闆昏矾 (IC) >> 绶�(xi脿n)鎬� - 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�(bi膩o)婧�(zh菙n)鍖呰:3,000 绯诲垪:OMNITUNE™ 椤�(l猫i)鍨�:瑾�(di脿o)璜у櫒 鎳�(y墨ng)鐢�:绉诲嫊(d貌ng)闆昏┍(hu脿)锛屾墜姗�(j墨)锛岃闋婚’绀哄櫒 瀹夎椤�(l猫i)鍨�:琛ㄩ潰璨艰 灏佽/澶栨:65-WFBGA 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁�:PG-WFSGA-65 鍖呰:甯跺嵎 (TR) 鍏跺畠鍚嶇ū(ch膿ng):SP000365064 |
| LT1675CMS8-1#TR | 鍔熻兘鎻忚堪:IC MUX RGB TRIPLE 250MHZ 8MSOP RoHS:鍚� 椤�(l猫i)鍒�:闆嗘垚闆昏矾 (IC) >> 绶�(xi脿n)鎬� - 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�(bi膩o)婧�(zh菙n)鍖呰:3,000 绯诲垪:OMNITUNE™ 椤�(l猫i)鍨�:瑾�(di脿o)璜у櫒 鎳�(y墨ng)鐢�:绉诲嫊(d貌ng)闆昏┍(hu脿)锛屾墜姗�(j墨)锛岃闋婚’绀哄櫒 瀹夎椤�(l猫i)鍨�:琛ㄩ潰璨艰 灏佽/澶栨:65-WFBGA 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁�:PG-WFSGA-65 鍖呰:甯跺嵎 (TR) 鍏跺畠鍚嶇ū(ch膿ng):SP000365064 |
| LT1675CMS8-1#TRPBF | 鍔熻兘鎻忚堪:IC MUX RGB SGL HS W/CFA 8-MSOP RoHS:鏄� 椤�(l猫i)鍒�:闆嗘垚闆昏矾 (IC) >> 绶�(xi脿n)鎬� - 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�(bi膩o)婧�(zh菙n)鍖呰:3,000 绯诲垪:OMNITUNE™ 椤�(l猫i)鍨�:瑾�(di脿o)璜у櫒 鎳�(y墨ng)鐢�:绉诲嫊(d貌ng)闆昏┍(hu脿)锛屾墜姗�(j墨)锛岃闋婚’绀哄櫒 瀹夎椤�(l猫i)鍨�:琛ㄩ潰璨艰 灏佽/澶栨:65-WFBGA 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁�:PG-WFSGA-65 鍖呰:甯跺嵎 (TR) 鍏跺畠鍚嶇ū(ch膿ng):SP000365064 |
| LT1675CS8-1 | 鍔熻兘鎻忚堪:IC MUX RGB HI-SPEED SINGLE 8SOIC RoHS:鍚� 椤�(l猫i)鍒�:闆嗘垚闆昏矾 (IC) >> 绶�(xi脿n)鎬� - 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�(bi膩o)婧�(zh菙n)鍖呰:3,000 绯诲垪:OMNITUNE™ 椤�(l猫i)鍨�:瑾�(di脿o)璜у櫒 鎳�(y墨ng)鐢�:绉诲嫊(d貌ng)闆昏┍(hu脿)锛屾墜姗�(j墨)锛岃闋婚’绀哄櫒 瀹夎椤�(l猫i)鍨�:琛ㄩ潰璨艰 灏佽/澶栨:65-WFBGA 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁�:PG-WFSGA-65 鍖呰:甯跺嵎 (TR) 鍏跺畠鍚嶇ū(ch膿ng):SP000365064 |
| LT1675CS8-1#PBF | 鍔熻兘鎻忚堪:IC MUX RGB HI-SPEED SINGLE 8SOIC RoHS:鏄� 椤�(l猫i)鍒�:闆嗘垚闆昏矾 (IC) >> 绶�(xi脿n)鎬� - 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�(bi膩o)婧�(zh菙n)鍖呰:3,000 绯诲垪:OMNITUNE™ 椤�(l猫i)鍨�:瑾�(di脿o)璜у櫒 鎳�(y墨ng)鐢�:绉诲嫊(d貌ng)闆昏┍(hu脿)锛屾墜姗�(j墨)锛岃闋婚’绀哄櫒 瀹夎椤�(l猫i)鍨�:琛ㄩ潰璨艰 灏佽/澶栨:65-WFBGA 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁�:PG-WFSGA-65 鍖呰:甯跺嵎 (TR) 鍏跺畠鍚嶇ū(ch膿ng):SP000365064 |
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