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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

. J4 p- ~+ m; ~2 @* b客户要求如下,如果哪家工厂可以做,请和我联系
4 U7 o6 S- ^: o > The application that we have in mind is similar to others that we commonly
$ }3 V8 B1 o* {) A! t# E ~> have. If we were to pay for FCC approval, we would want to use the modem
. V+ u6 E* ~5 L> units in all similar applications under the same approval number.
. E; C. }" B; u: U. h8 `* S% _ > Therefore, we would like to be able to configure the units to a specific
) f( y& ~ v2 D f8 q; s$ i- @ > application. For the business that we do, this approach will yield more
6 ]. l, M: O) B' U > sales based on the same product and approval. We are interested in the
; ^, o' m9 G( j" m9 A* O> following specifications:
- a- o, ]; m" A( [' z$ G& I' m. m6 s >
' G8 {7 i0 a* ~$ m$ w' M) k > - 2 inputs at the Transmitter with three possibilities;
$ w8 S$ u7 e4 J! d0 S> 2 analog
7 ^; R* [" i! A- Q' D$ y8 I4 Q/ e > 2 digital
7 R2 L% Q6 K+ |( J: a> 1 analog and 1 digital
9 ^+ T& z2 b5 f. o >
- V+ G) H3 }4 m> - 2 outputs at the Receiver with three possibilities to match inputs
( ^: D0 _# ^& V0 B>
* }2 Z }% T& Y, o# J( @! b- w3 O> - Ability to configure/define analog Transmitter input ranges through
5 Q2 G% b: x2 O$ E2 } > simple programming method to correspond with full-range analog Receiver
$ F* H. m8 U8 J5 @) q" w7 ? > outputs (0 - full voltage).
* U5 P" h- \- c7 K7 g% P+ s >
' ?" J! J7 Y* ~> - Ability to configure and set sample rates for the inputs.
# |& |) a, {0 s+ M( C( q4 I# Z >
5 s6 g; r, \4 k7 w> - Digital output on Transmitter that turns on during the sampling period.
8 f6 T( |+ N+ C1 M2 i% Z$ E* m2 u >
, ]$ W* }) K- u6 M% W) K6 Y7 C > - Ability to configure a power saving Sleep Mode in the Transmitter by
% W* ^; w/ q5 g> both software control and input hardware control.
( e( @, m4 ]5 u0 t3 S$ y$ [>
& V" K8 F% B. i5 T2 ~/ n6 q > In order to configure the units, we would need a way to make the
& F! n) S+ q% N+ c* O/ H+ B > settings. This would preferably be from a computer terminal so that
6 ^" K; d7 j) f4 A9 H7 f& ?' O> configurations can be saved or easily duplicated for production volumes.
. u- [0 \0 \% N> The units should be small and compact with shielding, and able to mount
4 b8 o/ ^# o, k2 t$ g> to a printed circuit board with header connector.
; O1 F8 o" w4 N>
' e" d0 B% j6 v/ g. N! A9 u8 z> At this time, we are interested in samples of a pair of modems that
% m$ }# ?% [2 S Z3 a> might be similar to this proposed system. We do not expect that you
, |8 _6 Y* V1 F& V> provide all of these specifications at this time. I can describe our
7 q3 U( C7 P8 q' a& ? > immediate application needs in the next email if this project is of
" }; Y( v& A3 w1 c) Y. I+ I4 ^> interest to you. Perhaps you can make the samples by those
* t% W0 Y: u, h& U- g> specifications. This will allow us to test your radios before we move
2 [: U4 [3 v$ U8 _ P4 C# W( g > forward. We are interested in your 900MHz radio to start.
; j( r) W W u u, A2 T
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