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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" A2 {. R# d! l* \ 客户要求如下,如果哪家工厂可以做,请和我联系
' d4 P8 [3 O( d > The application that we have in mind is similar to others that we commonly
& n/ j; v/ X( }( H# ?7 G' b> have. If we were to pay for FCC approval, we would want to use the modem
/ e: a/ }. G0 e5 `> units in all similar applications under the same approval number.
0 W4 T. h8 R4 t6 T! D> Therefore, we would like to be able to configure the units to a specific
: q4 q$ R! ~. W, \3 q' m1 i, y3 S> application. For the business that we do, this approach will yield more
* k9 l( k6 l, }5 D5 o: f4 I9 I> sales based on the same product and approval. We are interested in the
( _9 ], K" J* `) n' M0 [> following specifications:
+ `9 k$ C+ T6 j, P2 E, N>
4 U7 M' n- H+ b B! G> - 2 inputs at the Transmitter with three possibilities;
% @8 v" h, I/ e+ \$ U > 2 analog
?. a8 T' j! R5 u > 2 digital
" b0 x/ s" j* q, C. q> 1 analog and 1 digital
& p; P4 J. l* G+ o, n- a% D>
1 K. O8 \ }7 q' C, G8 S7 E. j > - 2 outputs at the Receiver with three possibilities to match inputs
* M( O0 u. `4 l/ Z" \1 F" Z) ]( | Z>
2 z1 t* U3 x- p > - Ability to configure/define analog Transmitter input ranges through
8 s( {5 @- a Q' E6 K% G% U B2 h> simple programming method to correspond with full-range analog Receiver
. L/ Q$ x) b8 |3 B3 n! K( x3 F > outputs (0 - full voltage).
; w8 C: n! E; V# p6 F* @. R c >
" |! w) b" c8 M) F- A/ ?7 P > - Ability to configure and set sample rates for the inputs.
" z! M. U% k; U4 ^8 v8 O2 V% X8 I >
$ p5 y3 K6 H4 C! ^ > - Digital output on Transmitter that turns on during the sampling period.
V; A# \ V; P) S U>
* ^0 |7 s% }0 I> - Ability to configure a power saving Sleep Mode in the Transmitter by
* t" [7 x# s& ?5 {% g% y! R& f > both software control and input hardware control.
5 ?) l: }4 G* |" `' q0 U >
# x6 Z9 y* R' \# O! J, G > In order to configure the units, we would need a way to make the
4 c9 S' l5 S3 h4 `; ~ > settings. This would preferably be from a computer terminal so that
( U2 m& }; q) A. B > configurations can be saved or easily duplicated for production volumes.
' T5 A1 |+ V2 K2 |6 z> The units should be small and compact with shielding, and able to mount
1 E" h1 u* w4 ?% j9 x> to a printed circuit board with header connector.
9 p# V3 G* e) b( { >
+ z% x- W9 ~* {; @$ Q" z3 W > At this time, we are interested in samples of a pair of modems that
3 o; L5 z& k% V3 v > might be similar to this proposed system. We do not expect that you
' W5 h3 t3 c- F2 Y6 ~+ E> provide all of these specifications at this time. I can describe our
6 U- _+ Y! j% |1 G) q > immediate application needs in the next email if this project is of
. J) Q: i i8 n, K* b' X V > interest to you. Perhaps you can make the samples by those
! `3 ]" }( {* L' _, c- v5 p+ z' I6 l8 Z> specifications. This will allow us to test your radios before we move
: H; d4 I. D% J, V > forward. We are interested in your 900MHz radio to start.
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