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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

9 g) L$ Z7 O6 ?3 B9 j 客户要求如下,如果哪家工厂可以做,请和我联系
- p+ t' }* h% W$ V> The application that we have in mind is similar to others that we commonly
0 h/ L3 J) k- Z > have. If we were to pay for FCC approval, we would want to use the modem
, @% q1 ?9 {3 @/ Q; |> units in all similar applications under the same approval number.
, E. T1 w9 N/ |; r1 _8 E > Therefore, we would like to be able to configure the units to a specific
* j8 _7 I" p4 n( j> application. For the business that we do, this approach will yield more
! R$ a _. ~5 _ > sales based on the same product and approval. We are interested in the
5 [! _' V' [+ G* B% v! m9 g, h9 g$ w> following specifications:
1 M- t; O5 s+ E8 H2 | >
% o' L$ N3 q, \> - 2 inputs at the Transmitter with three possibilities;
) X& S) J1 L: a& J> 2 analog
3 w1 ^. a/ g0 Y> 2 digital
' m' S: N/ X. N8 r" g# |2 i> 1 analog and 1 digital
5 ~8 q9 [' ~4 O/ h! u >
. m0 }$ M/ X1 H+ q5 O" q. {8 |. M > - 2 outputs at the Receiver with three possibilities to match inputs
; V, X" W7 k. M: _. t>
( J) m6 K' o8 S8 f$ @( V > - Ability to configure/define analog Transmitter input ranges through
" R" m6 F# S' k- o9 h6 x) D> simple programming method to correspond with full-range analog Receiver
S9 h& K5 ?, d7 D9 r: L* { > outputs (0 - full voltage).
+ M( ?; M' H3 ^' r6 N' g% c! I; M) M>
- ]2 }. w+ I$ R% O3 x! l' [> - Ability to configure and set sample rates for the inputs.
* h2 b b3 h9 P' |>
5 q. k4 q; D9 M3 D; L. ^- @. m9 j > - Digital output on Transmitter that turns on during the sampling period.
; {8 w( D6 O4 B0 e3 [+ r6 j9 C- ` >
3 H h: x5 Y! s# M% H: f> - Ability to configure a power saving Sleep Mode in the Transmitter by
% L0 I5 a' {1 e > both software control and input hardware control.
5 l8 Y+ w, h0 \ e7 n >
# ~! n# t* e/ I- Q > In order to configure the units, we would need a way to make the
3 K% Y& h2 V" }, X> settings. This would preferably be from a computer terminal so that
' R9 O5 m o+ e+ L5 q6 ^> configurations can be saved or easily duplicated for production volumes.
- I8 y+ F0 W$ Y c1 Q9 Z B( H% G8 o3 X- i > The units should be small and compact with shielding, and able to mount
# c) V; ]; u- R4 U/ {0 q > to a printed circuit board with header connector.
4 _) {& W# K8 M, @; N# M>
& P! L; }$ Y0 T, v0 S( K$ @> At this time, we are interested in samples of a pair of modems that
* O! M% i* h" d# i7 |> might be similar to this proposed system. We do not expect that you
0 h3 s$ c' m& G$ }% m> provide all of these specifications at this time. I can describe our
`4 _/ l; t3 |. {0 r8 w6 a> immediate application needs in the next email if this project is of
, g3 p& [( F- X* T > interest to you. Perhaps you can make the samples by those
( h: `- c: H ^+ }- \1 f> specifications. This will allow us to test your radios before we move
0 e% u' |* ~1 o' u0 U2 @ > forward. We are interested in your 900MHz radio to start.
0 v# D5 `" ~- A; A6 E* j
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