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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

& B! }) N. O, ^( x$ | 客户要求如下,如果哪家工厂可以做,请和我联系
& k0 t0 a# G" q# S; T > The application that we have in mind is similar to others that we commonly
* f/ x! a% A1 `# o> have. If we were to pay for FCC approval, we would want to use the modem
2 |/ N7 U! @* k9 F6 |! f f> units in all similar applications under the same approval number.
1 V. a' r2 }/ b* B0 j> Therefore, we would like to be able to configure the units to a specific
- a& g9 U1 |# z0 r' e- ^' R > application. For the business that we do, this approach will yield more
' p' z- V6 V/ q > sales based on the same product and approval. We are interested in the
$ }) X8 X- J# ]$ O; X. g > following specifications:
2 n/ d$ ]; S4 a" D9 N0 _>
# ^: g0 {$ a8 F4 p, ]( z0 ]8 l* O> - 2 inputs at the Transmitter with three possibilities;
6 C& O5 o' k8 a) k: s/ v3 s" N! C K# I! c> 2 analog
7 \$ [9 @$ J; K- }4 D# \ > 2 digital
0 _' }, L$ o6 N# ~3 E) C+ f > 1 analog and 1 digital
$ `. b: N2 i- W+ v7 I/ j>
; m/ a$ A4 D& ? @$ P/ @5 x> - 2 outputs at the Receiver with three possibilities to match inputs
5 }/ k: x6 g8 v; e>
! c' \2 L. y5 c7 r, n! z) | > - Ability to configure/define analog Transmitter input ranges through
' G& |' Q, V) K+ v > simple programming method to correspond with full-range analog Receiver
2 I/ ~ ?; X* L# U1 b1 j> outputs (0 - full voltage).
3 l( m, `$ P+ C* v>
3 K2 w7 G a8 w1 k! U > - Ability to configure and set sample rates for the inputs.
+ }4 h/ q; {6 q# b >
3 C; Q) \) k! r5 X > - Digital output on Transmitter that turns on during the sampling period.
3 E' ~+ o6 }4 {8 I K- d5 g >
0 d. K; B1 z8 C j! t: |: z7 x> - Ability to configure a power saving Sleep Mode in the Transmitter by
" G7 T, ^# C% P7 l. ?: i > both software control and input hardware control.
9 a9 l5 J2 |+ K4 x* o3 c >
" z( u- t o$ E3 S > In order to configure the units, we would need a way to make the
. ?5 Y/ e: |9 v) R! D/ b0 r > settings. This would preferably be from a computer terminal so that
4 v( i1 Z4 S4 S& C1 U2 [ > configurations can be saved or easily duplicated for production volumes.
0 Q% _. A/ r# a/ D) p7 U/ j: L y' z> The units should be small and compact with shielding, and able to mount
0 @5 P3 }- k; {1 ?/ C5 ~ > to a printed circuit board with header connector.
6 ?$ T3 A4 E6 {5 R0 }- q7 u4 C >
8 n6 a" Y' b S0 W; q3 d9 J > At this time, we are interested in samples of a pair of modems that
$ v- s+ W; Z4 j; L9 P3 \ > might be similar to this proposed system. We do not expect that you
. n9 j# ^& L$ w9 e > provide all of these specifications at this time. I can describe our
* D w. n# E2 v" J* u, ~3 [ > immediate application needs in the next email if this project is of
' \3 U5 M$ H: |. R' c9 `> interest to you. Perhaps you can make the samples by those
* `% E3 `( Z7 x/ S" I > specifications. This will allow us to test your radios before we move
6 E: T `0 P+ Z% f( j7 P6 z > forward. We are interested in your 900MHz radio to start.
7 ^. b9 e% y) @ X
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