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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

% P$ S& `0 W" z# |( v6 ~4 Q客户要求如下,如果哪家工厂可以做,请和我联系
) T+ N1 |8 a" L> The application that we have in mind is similar to others that we commonly
( `& X# F1 y v9 |/ S* `3 r > have. If we were to pay for FCC approval, we would want to use the modem
4 H& r2 M$ I6 L. J4 B- q> units in all similar applications under the same approval number.
: T9 d0 x4 _# l- Q- v) E7 ^ > Therefore, we would like to be able to configure the units to a specific
2 o3 P& w: Q. M; H> application. For the business that we do, this approach will yield more
# ?; {7 t3 f9 N# W0 ]; I> sales based on the same product and approval. We are interested in the
" ?7 o1 ]# ^' h! j > following specifications:
/ L6 C+ N& @" u) I >
: z4 F! i/ c* e& F; |7 Q> - 2 inputs at the Transmitter with three possibilities;
7 w' O. x; Z C! P9 k > 2 analog
8 k0 q5 W7 G6 @' q+ G2 [> 2 digital
+ k6 O) [' _$ z7 U9 p6 V> 1 analog and 1 digital
& a2 _4 t0 y: I& o >
q* p" H7 ^: q* Q8 Q. m& a2 Z > - 2 outputs at the Receiver with three possibilities to match inputs
6 V# e8 N/ D, e; T6 c- t; c( R6 y( j>
8 z' h/ A4 D. r) U > - Ability to configure/define analog Transmitter input ranges through
) Y+ _5 D& ]: _ > simple programming method to correspond with full-range analog Receiver
, v/ j) P1 a4 J+ U! {- x7 \ > outputs (0 - full voltage).
3 E7 B+ v, j) ^3 h >
% a' Y Q. h h9 u7 o> - Ability to configure and set sample rates for the inputs.
/ U9 w! z6 Z9 `- N7 l>
( |! r+ u/ Q- C6 _' U> - Digital output on Transmitter that turns on during the sampling period.
- k7 h' F: g) x+ n" U: r& w >
* F: T4 r" m7 B4 t0 _" H > - Ability to configure a power saving Sleep Mode in the Transmitter by
9 @. L2 l( D* \" |# \6 S > both software control and input hardware control.
- L: ~" f- r& P/ X. X, I* c) ~' y >
5 ^; A. K( F6 i> In order to configure the units, we would need a way to make the
$ o9 E! e' b- c( y > settings. This would preferably be from a computer terminal so that
8 @1 B K2 x/ }" R/ q> configurations can be saved or easily duplicated for production volumes.
0 _ ^9 M: M- e" r) L2 b > The units should be small and compact with shielding, and able to mount
9 B: V1 q @0 m> to a printed circuit board with header connector.
* u1 s) U* {8 g+ X0 r8 j >
, d% Z$ v# h# b0 P! y: i1 f> At this time, we are interested in samples of a pair of modems that
. |& d# ]! O [2 q > might be similar to this proposed system. We do not expect that you
, U% f8 G. V! c4 e% m" y3 w# i$ [ > provide all of these specifications at this time. I can describe our
$ j. K; G, b k1 y+ j( P > immediate application needs in the next email if this project is of
. I+ z5 R% A1 n4 O! E t4 R p> interest to you. Perhaps you can make the samples by those
, @5 x' C" K4 e1 [1 p1 `0 C> specifications. This will allow us to test your radios before we move
7 b4 v' P) C7 H# @6 W9 P6 ?> forward. We are interested in your 900MHz radio to start.
/ H# Y& I5 G. Y8 G- E6 M* `
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