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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

3 R$ M* [6 G6 m8 u5 @客户要求如下,如果哪家工厂可以做,请和我联系
+ m& L+ O& }5 V> The application that we have in mind is similar to others that we commonly
/ S' [6 h% A" s& f/ k' v > have. If we were to pay for FCC approval, we would want to use the modem
" @. Q; j% w8 Z; _4 d% w+ f K5 A; n > units in all similar applications under the same approval number.
( Z2 L P& @1 C4 j7 {& C$ p; N> Therefore, we would like to be able to configure the units to a specific
0 s) C: o' t0 m+ t$ d& Z# N > application. For the business that we do, this approach will yield more
$ T- y5 T6 x/ e- E> sales based on the same product and approval. We are interested in the
/ T2 Y' Y/ F2 m2 z; b > following specifications:
- t) A6 I# p# Q& K. e/ a' _$ b>
* t+ ^0 Q; `% O > - 2 inputs at the Transmitter with three possibilities;
! G- s* l( [+ k- _6 F( ^> 2 analog
Q: W6 N( c1 T; d! G0 h: S4 c> 2 digital
) L) A' \5 T" i- o: W > 1 analog and 1 digital
* ]2 N6 Q( b/ |2 {& Y) d! T' A$ G>
+ J, @5 E: Q8 F1 s- |. d- l! `+ i > - 2 outputs at the Receiver with three possibilities to match inputs
2 u* c4 j1 f# r; g' u" o. M >
7 Q6 W( D, B( @3 a: n$ ?6 u > - Ability to configure/define analog Transmitter input ranges through
, d4 s! m# Y# s# Y6 o: a > simple programming method to correspond with full-range analog Receiver
% R/ s; W+ h3 i: t+ e> outputs (0 - full voltage).
9 J+ I* ^ l8 r6 Q# p >
- ~4 A7 w: m# Q% v7 _> - Ability to configure and set sample rates for the inputs.
# R) j6 z7 c" s9 {, B, ^4 {) U>
7 }# F' x, }- T3 E% g8 Z> - Digital output on Transmitter that turns on during the sampling period.
1 i# J% R. e2 A" W1 }- I >
4 i8 \& h+ v _8 B( G> - Ability to configure a power saving Sleep Mode in the Transmitter by
: E3 B5 Y, v/ O# ~' L7 Z' |9 h> both software control and input hardware control.
\/ O( ^& N* H >
$ z L x: L9 o: z P6 O" @ > In order to configure the units, we would need a way to make the
8 j9 q. a; X' x u> settings. This would preferably be from a computer terminal so that
% v8 W; k2 @! K! ?& ?: G > configurations can be saved or easily duplicated for production volumes.
5 M4 Y! z+ c( N0 Q# S3 d; G > The units should be small and compact with shielding, and able to mount
$ D: z" r+ |3 ~1 w1 q: D> to a printed circuit board with header connector.
9 S3 {% N+ I% J2 u" S >
) X7 p1 u. k N$ [5 {2 A> At this time, we are interested in samples of a pair of modems that
5 D' @- U7 ^4 {7 P > might be similar to this proposed system. We do not expect that you
- U' s* q5 @3 Q > provide all of these specifications at this time. I can describe our
5 l7 P( l4 L [( \2 m5 W5 P> immediate application needs in the next email if this project is of
( X$ `- c/ [. n6 t7 ^ x2 M > interest to you. Perhaps you can make the samples by those
, x. Y1 D3 z+ w4 U) v8 j > specifications. This will allow us to test your radios before we move
% t3 F$ J& k @& ~# \> forward. We are interested in your 900MHz radio to start.
. \( s0 O0 T ^- V' d+ U5 L
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