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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

2 t9 [' S1 |3 e$ o: j 客户要求如下,如果哪家工厂可以做,请和我联系
& m4 s$ o ~1 }; a: ~ > The application that we have in mind is similar to others that we commonly
6 ^0 |: i* j9 m( Z* S& C& b# W3 `- P" o > have. If we were to pay for FCC approval, we would want to use the modem
* r( R+ y+ H* o& K' d* A% B) l> units in all similar applications under the same approval number.
$ j' p* A# }- B. v> Therefore, we would like to be able to configure the units to a specific
1 c! S) W7 j* w( x6 } k$ T6 b > application. For the business that we do, this approach will yield more
) b: w" L/ b# P3 T > sales based on the same product and approval. We are interested in the
6 d+ y. G9 o: Z( J' I; E, K% \> following specifications:
6 Z+ V/ o. {4 |9 M, A, }' w >
% r6 b" ~$ d# l3 a* ^3 x6 w" b% |> - 2 inputs at the Transmitter with three possibilities;
O, @6 ?7 t1 B9 a9 t# g0 o > 2 analog
1 m; c2 `1 Y9 W8 d> 2 digital
; u9 E. X( h0 P7 A, U; l> 1 analog and 1 digital
/ _1 u1 G2 _6 W, t% H4 @$ P >
% u8 t T j @$ g" U; K+ r> - 2 outputs at the Receiver with three possibilities to match inputs
: V# j/ ^" f. O1 N K7 s: ? D>
8 s% T- [: `8 r) N" |: i > - Ability to configure/define analog Transmitter input ranges through
6 i% q9 B: m* f9 n: t4 K > simple programming method to correspond with full-range analog Receiver
. H" D) T. i1 C> outputs (0 - full voltage).
8 l \ x5 k0 _3 W$ ^; `$ z* |) U% G >
) z5 r+ u) J1 Q' E, _1 D > - Ability to configure and set sample rates for the inputs.
2 U6 x! Q3 ~8 q$ X; A8 Q>
# Y: z* V4 T6 H> - Digital output on Transmitter that turns on during the sampling period.
3 C! h9 Y* [. o6 D>
0 [7 h, @( k7 ]) Q3 z> - Ability to configure a power saving Sleep Mode in the Transmitter by
5 M: D% d1 d% M4 N> both software control and input hardware control.
~+ K m' P/ \8 N: U>
8 h' p& Y* |9 e0 j. |# C1 B9 o* W9 y> In order to configure the units, we would need a way to make the
2 ~4 Z+ E! i4 L> settings. This would preferably be from a computer terminal so that
, s% i* R7 g* V) v' q' M8 u$ X9 T> configurations can be saved or easily duplicated for production volumes.
: E+ w) E8 l; P4 C2 D9 ?, |, Z > The units should be small and compact with shielding, and able to mount
/ s3 C0 n' e. i5 u9 t( g2 L- P> to a printed circuit board with header connector.
5 S6 T0 [8 @; `5 ~' g9 t0 A >
: A2 U; s- K9 y0 W A> At this time, we are interested in samples of a pair of modems that
- \, t1 h: J4 J- O > might be similar to this proposed system. We do not expect that you
' {2 }% u9 Z' S' @8 B> provide all of these specifications at this time. I can describe our
% N0 G4 @9 f* l# l4 {> immediate application needs in the next email if this project is of
; c# j3 ~: G B7 q* D2 y& s/ \: D > interest to you. Perhaps you can make the samples by those
0 y6 }5 K) @$ o& t/ V2 o > specifications. This will allow us to test your radios before we move
! `# P% d, D7 M> forward. We are interested in your 900MHz radio to start.
3 c# W/ i1 r. C% i( W' [) {
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