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[寻求合作]音频传输模块,做出口

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安防幼儿园学生

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发表于 2007-5-27 20:29:37 | 显示全部楼层 |阅读模式

- i/ M" K, H0 O: ~0 H9 M, `' v 客户要求如下,如果哪家工厂可以做,请和我联系
7 e* R' J @+ ^: l5 n/ j > The application that we have in mind is similar to others that we commonly
# q+ M' U9 j0 O1 C3 L& n> have. If we were to pay for FCC approval, we would want to use the modem
, X' y' O9 e( ~- z> units in all similar applications under the same approval number.
0 S3 d7 }5 y3 t> Therefore, we would like to be able to configure the units to a specific
5 k8 M+ h% t! \! p- ^ > application. For the business that we do, this approach will yield more
. k5 p/ L* s8 k4 M> sales based on the same product and approval. We are interested in the
( N& ^* P v9 q3 f2 a, f3 j> following specifications:
1 o$ C* L, l& t" T1 R >
7 h" [ k. m- T& [> - 2 inputs at the Transmitter with three possibilities;
+ n1 e3 L! o0 @2 [ > 2 analog
$ Y# u' ?3 e$ E' I) }+ d t> 2 digital
) F( ]3 F) t+ N9 @7 k1 m > 1 analog and 1 digital
# q+ I" t* k' z4 q' X$ z% v9 R>
+ U [# Q U& @+ Y; h( k7 e > - 2 outputs at the Receiver with three possibilities to match inputs
& W1 d5 r5 @, Q# ]- N+ z >
: ]1 ]7 |+ O) L" A > - Ability to configure/define analog Transmitter input ranges through
- Q/ a( Y8 u0 a. X> simple programming method to correspond with full-range analog Receiver
8 D" Q* o" r5 o$ D > outputs (0 - full voltage).
7 e: D6 x" e8 a" }, b1 D# Y, x >
) y; I T. e+ w* c" Q> - Ability to configure and set sample rates for the inputs.
1 |. T, K! j8 M4 Z$ E >
* p: B) H: [7 {7 t; K) {8 z> - Digital output on Transmitter that turns on during the sampling period.
. L5 m) _% Q* i& ^4 j) Y4 z# r >
' l/ ^9 k+ L7 }8 n, q3 s> - Ability to configure a power saving Sleep Mode in the Transmitter by
( ]2 G9 [8 {7 F! I# P W7 Z% s> both software control and input hardware control.
) g, W0 B% _) g E>
0 G$ Y, p! f8 }, w+ B% s> In order to configure the units, we would need a way to make the
/ m( H8 E! _ F > settings. This would preferably be from a computer terminal so that
) Y6 e+ }, S* j) n) _3 U6 o> configurations can be saved or easily duplicated for production volumes.
& @4 F* M: @; v7 S& G, h > The units should be small and compact with shielding, and able to mount
2 d4 b& L; L) f > to a printed circuit board with header connector.
1 Z7 ~4 H3 x4 }* `& R5 V: Z3 R7 I>
4 E3 i# s) }$ U/ r% L2 [8 O$ J> At this time, we are interested in samples of a pair of modems that
5 m: @$ @7 x4 U5 G7 Q* }0 {; e$ y7 q> might be similar to this proposed system. We do not expect that you
, {8 q3 H* V+ ]! ?" V2 O > provide all of these specifications at this time. I can describe our
: T6 R7 ~5 x+ Z) l > immediate application needs in the next email if this project is of
& d& }% r3 O& ^> interest to you. Perhaps you can make the samples by those
, ]! f/ E ?" T* C > specifications. This will allow us to test your radios before we move
/ V- G7 I3 O2 U& B( c5 x > forward. We are interested in your 900MHz radio to start.
( t' F% o0 b$ b) Q5 G6 i1 z
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