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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

* _: \( g, }( ]0 E, s% | 客户要求如下,如果哪家工厂可以做,请和我联系
& R+ b- K" y; w9 t& W: A9 R) d > The application that we have in mind is similar to others that we commonly
7 O" s |+ g( N7 B, N> have. If we were to pay for FCC approval, we would want to use the modem
+ E( w1 i e% u1 ~- x/ X> units in all similar applications under the same approval number.
' K, @& {; o3 K- O> Therefore, we would like to be able to configure the units to a specific
6 d5 j; G) n* M* P* e> application. For the business that we do, this approach will yield more
; i: y. K1 A3 ~3 P( O> sales based on the same product and approval. We are interested in the
/ [2 e6 f2 @8 c# t9 x2 P5 C$ ` > following specifications:
5 E& I1 W* x% n# j >
H' o! ]6 T7 q2 j> - 2 inputs at the Transmitter with three possibilities;
5 T* f; ^8 G, N* z8 F' e3 B3 v> 2 analog
5 y$ l j+ \' |5 T c L > 2 digital
) z8 R+ }- i. q% ^5 c > 1 analog and 1 digital
! d9 c b$ ]$ W0 p- B ]; f>
7 w/ y/ o" e( S4 s9 o+ C& ~7 [% @> - 2 outputs at the Receiver with three possibilities to match inputs
3 X$ t" `: P& S0 o>
! v- D9 _5 i# @) u7 f7 }+ |/ N> - Ability to configure/define analog Transmitter input ranges through
+ D7 y1 X0 D* j > simple programming method to correspond with full-range analog Receiver
. a( a3 J1 G! l > outputs (0 - full voltage).
+ D( @; s3 w6 F >
2 }4 w K+ B2 S' l% T > - Ability to configure and set sample rates for the inputs.
- r- z5 M; `/ ^ >
4 J8 i( w+ G7 P4 { > - Digital output on Transmitter that turns on during the sampling period.
: [5 ?( p# A: E7 z4 {8 L& L; C; | >
6 x$ v3 J1 o# w > - Ability to configure a power saving Sleep Mode in the Transmitter by
. I; y1 A D( h; u > both software control and input hardware control.
3 ^. h) c5 I C5 C s* Q& Q >
: b; ^5 f/ u1 N! x' i: X0 c7 g > In order to configure the units, we would need a way to make the
( n3 H& G& X' I5 Q% t5 V4 @. ]' I > settings. This would preferably be from a computer terminal so that
) c; `) H/ E& Z! u; F& Y z> configurations can be saved or easily duplicated for production volumes.
3 _3 e3 G7 r+ f! Z8 v > The units should be small and compact with shielding, and able to mount
7 `# J8 B6 h0 Y Y1 x$ A> to a printed circuit board with header connector.
* t2 n, X3 z4 d8 g+ Q+ r+ w& t>
& K1 _; K6 g1 w7 \& i$ s> At this time, we are interested in samples of a pair of modems that
; M# r# i( K5 z7 _9 c- |> might be similar to this proposed system. We do not expect that you
% ~, ?: w- W. Y& f> provide all of these specifications at this time. I can describe our
3 {" Z* [# I4 C" ~; p/ A> immediate application needs in the next email if this project is of
4 j. X3 K9 c g* X( [) [ > interest to you. Perhaps you can make the samples by those
; u$ b; ?; q% C- f# t* p( { > specifications. This will allow us to test your radios before we move
; n9 m# @! D; k > forward. We are interested in your 900MHz radio to start.
& s- [8 @- Q6 z+ }' U: d
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