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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

o# b5 a1 V# P* {* E9 A, @ 客户要求如下,如果哪家工厂可以做,请和我联系
# P7 V$ X x( ]2 h > The application that we have in mind is similar to others that we commonly
; p! n3 F6 {) y# Z% V: S0 t4 v; d> have. If we were to pay for FCC approval, we would want to use the modem
5 V4 z, e: ?& X) m( Z> units in all similar applications under the same approval number.
- n: q7 K/ C' S) I, U> Therefore, we would like to be able to configure the units to a specific
# v% Z) ~9 I- w( L: m > application. For the business that we do, this approach will yield more
* u1 O1 \+ X; h, j> sales based on the same product and approval. We are interested in the
+ s& i8 n# g( s+ y2 U > following specifications:
* a* S" S, U* E! q7 Q. L5 _ >
) J2 R+ w! ~' U> - 2 inputs at the Transmitter with three possibilities;
B7 ^3 R8 C9 e# T% y > 2 analog
5 f6 Q5 z3 g) X, @! ~> 2 digital
2 R n7 [' Q. d' H- h6 Y# I> 1 analog and 1 digital
' X& N+ g# D8 K7 S. u1 b >
% ?5 X3 c& e8 `/ |$ U > - 2 outputs at the Receiver with three possibilities to match inputs
, ^* f, r8 B; F- c>
; k0 X+ r j% }" F3 Y' \- x# P+ x9 B > - Ability to configure/define analog Transmitter input ranges through
& G& t3 _) ?4 a8 a > simple programming method to correspond with full-range analog Receiver
6 \# U# e5 L, Y$ S> outputs (0 - full voltage).
# N/ E( w) y* h, l& C>
2 |8 r" c O- c4 f8 {, ^2 y > - Ability to configure and set sample rates for the inputs.
2 }, ]: p5 M2 v3 [2 ]( i7 _ >
( S& v9 V6 l% l; T> - Digital output on Transmitter that turns on during the sampling period.
( j3 T+ z B) r>
% r- Q8 O$ G4 V' P f9 L5 ~ > - Ability to configure a power saving Sleep Mode in the Transmitter by
T9 t0 b* b! l$ y s- G F> both software control and input hardware control.
# t2 e: P- w- F% z>
8 q6 Y' @7 }6 S; k* v; u. U > In order to configure the units, we would need a way to make the
3 v S- l% Z# }8 a6 t> settings. This would preferably be from a computer terminal so that
6 o& U! v! c7 m6 N: w# p, o> configurations can be saved or easily duplicated for production volumes.
5 e: n. u) P6 Z- M+ |* T/ S> The units should be small and compact with shielding, and able to mount
0 N5 U1 P" m0 w5 G> to a printed circuit board with header connector.
* _, k& u* B, M3 |% g* J6 M+ m >
" X8 L3 M1 {( z1 W4 S- ?> At this time, we are interested in samples of a pair of modems that
- h/ ~* `* d3 ~& D7 ^> might be similar to this proposed system. We do not expect that you
. t" q0 d: q* d5 l+ Y6 f> provide all of these specifications at this time. I can describe our
1 E( h3 }5 b, u > immediate application needs in the next email if this project is of
8 y* ^. D: |2 F( J1 x > interest to you. Perhaps you can make the samples by those
8 l! m7 P2 G% \ }+ h' v> specifications. This will allow us to test your radios before we move
8 ?! n. H' s* V4 [$ C) }- l. }> forward. We are interested in your 900MHz radio to start.
" K& K& q- v: ~
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