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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

3 O3 T% |1 g) s. L: d0 P) ~客户要求如下,如果哪家工厂可以做,请和我联系
. {' ?: T- m3 B7 F, k- E1 U; Q > The application that we have in mind is similar to others that we commonly
1 w% g" O; W$ u4 w" `/ T > have. If we were to pay for FCC approval, we would want to use the modem
2 N* g' Z5 x. g! Q> units in all similar applications under the same approval number.
; B9 v* @# M. x% M5 X> Therefore, we would like to be able to configure the units to a specific
- G5 N5 G2 r6 x4 p8 Q1 x > application. For the business that we do, this approach will yield more
% I% V6 Z, V% p- ]; j: p > sales based on the same product and approval. We are interested in the
3 n) `& E" d L) d2 N+ n3 A > following specifications:
1 f* C8 J+ c( |% X* g' G2 h! L% ?>
* ~+ C, H2 z* s( R) m) h. D > - 2 inputs at the Transmitter with three possibilities;
* E W* }) P# q > 2 analog
* D4 F* g- Q4 s4 I$ ~" t# C! [> 2 digital
; ^7 j" v/ |# ^5 i > 1 analog and 1 digital
2 ]. Y: e% w' T4 }# r: M>
7 t H( d7 U5 g4 H3 ` m( {: ]> - 2 outputs at the Receiver with three possibilities to match inputs
* b# w( O. w& Z. t% m>
" N6 h9 G% c+ V+ S$ y5 k$ B+ ~> - Ability to configure/define analog Transmitter input ranges through
9 x4 l. v8 U4 r2 ?1 d- e > simple programming method to correspond with full-range analog Receiver
- M! q" \2 o$ |6 L> outputs (0 - full voltage).
' P; e5 T: m0 o: D0 U2 ~" }>
7 Z; A0 I4 ^) T5 w: R' T > - Ability to configure and set sample rates for the inputs.
5 c. s* T+ D: J: n9 z>
- G3 E- }% b5 q, J* m> - Digital output on Transmitter that turns on during the sampling period.
$ y/ X: _8 W5 C8 G" i" { >
, A3 t$ h- w2 ~, Y" C2 U > - Ability to configure a power saving Sleep Mode in the Transmitter by
% X# t' d. W, C7 V/ T > both software control and input hardware control.
& d5 R" b* C" a9 y6 _# R>
" i$ `: H7 |0 H# ~' G> In order to configure the units, we would need a way to make the
1 I0 d* x: n) x9 P > settings. This would preferably be from a computer terminal so that
9 k7 M! S' p3 Z) F > configurations can be saved or easily duplicated for production volumes.
+ S: m+ s' _7 S$ f% M( z > The units should be small and compact with shielding, and able to mount
( i- V7 @- T D& F" `) V" C" e2 Y) m> to a printed circuit board with header connector.
8 \0 h7 O& ?6 H3 S7 f# j>
7 L$ b) l+ i) m7 { > At this time, we are interested in samples of a pair of modems that
) \% Y: Q2 s8 v, w > might be similar to this proposed system. We do not expect that you
4 c, M+ M9 `# s" h9 e > provide all of these specifications at this time. I can describe our
% ]2 v+ ?1 h1 d7 a> immediate application needs in the next email if this project is of
1 Y1 Y1 _; @3 n3 K2 b > interest to you. Perhaps you can make the samples by those
& k" f2 t% J3 j1 }7 b! {! w+ Z+ S D > specifications. This will allow us to test your radios before we move
# L/ a) A8 n% a7 s, d > forward. We are interested in your 900MHz radio to start.
( V! G' D- ~" s* @# y
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