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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

' J- ^2 A0 D' H3 j0 d 客户要求如下,如果哪家工厂可以做,请和我联系
' S! P0 q& U: L5 t' ^( K9 B > The application that we have in mind is similar to others that we commonly
6 |( {0 @* B2 d# L/ [9 x> have. If we were to pay for FCC approval, we would want to use the modem
4 {' C# @) {: X$ Y1 V3 A; @' d> units in all similar applications under the same approval number.
5 E& y- x" d# Y( v> Therefore, we would like to be able to configure the units to a specific
+ [) g9 ^1 V' g3 m: l! J> application. For the business that we do, this approach will yield more
4 K Y# U7 k; {) p: q > sales based on the same product and approval. We are interested in the
0 |. L* K7 L6 I4 F& V> following specifications:
% T" d2 N7 _) [1 g3 L% t >
6 r; d2 W* y. U( w> - 2 inputs at the Transmitter with three possibilities;
4 f* ^5 T& T5 N8 q& g> 2 analog
( {, _! Y# L5 v+ W9 G > 2 digital
0 }. D3 K: Y M% U7 h& }& i > 1 analog and 1 digital
9 v$ w* |9 ?* l2 L >
* b8 h4 X8 y8 j, Y" ?/ T. I! P& n> - 2 outputs at the Receiver with three possibilities to match inputs
: T$ _7 ~; V' ?/ h. i. x >
/ `+ |6 b' z3 G% l* h > - Ability to configure/define analog Transmitter input ranges through
0 I- c/ _" d2 k> simple programming method to correspond with full-range analog Receiver
& b8 }0 b7 W! }. ^: A> outputs (0 - full voltage).
& `0 z/ J& p4 ? >
# x$ O. A* c9 }$ {- M > - Ability to configure and set sample rates for the inputs.
2 F/ p7 L& m' [# n% `>
: d7 v- V, F) c> - Digital output on Transmitter that turns on during the sampling period.
3 e' w) p4 t8 N/ `/ i6 T) n >
; s0 F8 }7 x$ }) o > - Ability to configure a power saving Sleep Mode in the Transmitter by
* k/ y' Q0 N$ r1 Q. _; c0 D; `- _> both software control and input hardware control.
3 n$ K4 X( |5 r( V! I>
% [8 i" l6 a( }) [ > In order to configure the units, we would need a way to make the
/ b1 _" |! a( `" G- C; ^) z > settings. This would preferably be from a computer terminal so that
# r( J" j: \0 S x! o4 r% R > configurations can be saved or easily duplicated for production volumes.
' H- V ?- q" v9 O > The units should be small and compact with shielding, and able to mount
" Y- O; ~( \, u" P > to a printed circuit board with header connector.
" r8 f5 M$ z5 p>
2 y" ?) b0 I4 p2 X > At this time, we are interested in samples of a pair of modems that
' S( R7 M* T( i) H0 c- e > might be similar to this proposed system. We do not expect that you
) l2 j8 F$ o t+ d9 X> provide all of these specifications at this time. I can describe our
$ c. ^( `2 c/ I8 ]$ k/ R. t> immediate application needs in the next email if this project is of
$ R" O+ E% g$ l U2 n) b> interest to you. Perhaps you can make the samples by those
5 V; V" o7 z& H s' x7 @ > specifications. This will allow us to test your radios before we move
3 g8 Q7 f, b" {1 R> forward. We are interested in your 900MHz radio to start.
5 F+ m: D8 @/ t2 ?5 f, K
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