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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

( R6 s( ~' d& z! H% K" Z客户要求如下,如果哪家工厂可以做,请和我联系
& x( U/ c: A7 y2 a> The application that we have in mind is similar to others that we commonly
; u( l; h/ W6 Y' N0 ]' N> have. If we were to pay for FCC approval, we would want to use the modem
3 z7 ]. ]+ ? q; \/ C t6 A$ s> units in all similar applications under the same approval number.
( W) s: D$ e k> Therefore, we would like to be able to configure the units to a specific
3 ^) Q1 x# p) X+ [; k> application. For the business that we do, this approach will yield more
1 o# O; F H, E > sales based on the same product and approval. We are interested in the
1 d7 O0 }& Z( y5 C1 B. L8 n> following specifications:
9 H" M/ l& N5 f7 v9 n7 C4 d. P$ S, V. R>
1 G/ I O1 u4 z& P# a > - 2 inputs at the Transmitter with three possibilities;
( A" j5 y) h; H$ W8 ]1 J> 2 analog
2 z' v% W+ ?% v: I' z2 N& m. m! ~> 2 digital
# }% F# u6 O/ f- G: B> 1 analog and 1 digital
+ F: U$ ]6 I* a' ^' i5 ]) ]; f>
0 Z$ r, M) y1 H/ c > - 2 outputs at the Receiver with three possibilities to match inputs
; \- i6 _1 L# {7 w' F0 B9 ^8 x >
6 C. J, N1 R1 J' F' a) f > - Ability to configure/define analog Transmitter input ranges through
! v7 ]" C6 W( c6 E6 c4 ~$ T8 [ > simple programming method to correspond with full-range analog Receiver
$ C; Z" v5 D D( l7 W& X5 X> outputs (0 - full voltage).
* ]5 Y! o3 t# ~! d >
( o% u6 G5 H2 c& C! J) Q: \0 t# [1 h > - Ability to configure and set sample rates for the inputs.
! @; }& u; ^$ x! `- h; L>
* Z/ E) H+ X; q > - Digital output on Transmitter that turns on during the sampling period.
7 h- Z6 ]' G) }>
6 W5 j) Y" J0 i: c > - Ability to configure a power saving Sleep Mode in the Transmitter by
; A. S) q; b0 W > both software control and input hardware control.
! {& u2 K% S: z$ ~>
0 M! s& h7 U+ ~' |$ V& H > In order to configure the units, we would need a way to make the
1 H ?% y0 ]2 q# r( R! {% d > settings. This would preferably be from a computer terminal so that
. Q7 d6 [# I( z+ V2 [* y, {7 @5 I8 L > configurations can be saved or easily duplicated for production volumes.
, N# x7 T- u2 a/ E5 d: E1 t7 c2 ^! v > The units should be small and compact with shielding, and able to mount
* o% J% d9 V8 ?" @+ z( \ > to a printed circuit board with header connector.
2 y& @3 l9 M J0 T7 { >
# p, j N6 k: u3 H$ r > At this time, we are interested in samples of a pair of modems that
- _* m b( f: T4 t3 j1 D> might be similar to this proposed system. We do not expect that you
$ W: M" f; \; @ > provide all of these specifications at this time. I can describe our
( r$ x# ~- ]" a9 F> immediate application needs in the next email if this project is of
4 G! @/ {9 p( L8 g: g# J, c > interest to you. Perhaps you can make the samples by those
) B" w6 c7 ~; _# k0 D > specifications. This will allow us to test your radios before we move
! M7 P- ~9 [5 y' x; ^2 u+ C> forward. We are interested in your 900MHz radio to start.
n6 q3 ]3 v+ J4 H: D& O( C, B
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