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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

" o3 u$ ^% Q9 V- x5 \) a( w 客户要求如下,如果哪家工厂可以做,请和我联系
3 |% n; f; u: z0 ]# { G1 I> The application that we have in mind is similar to others that we commonly
3 X$ a0 E, }9 K> have. If we were to pay for FCC approval, we would want to use the modem
/ ]% `- q) ^$ o- b: U6 K0 r > units in all similar applications under the same approval number.
& k4 e" t! f4 q5 Q- Q > Therefore, we would like to be able to configure the units to a specific
9 `: V% y; u/ E; F/ F6 }+ r6 r3 H' S9 A > application. For the business that we do, this approach will yield more
# _" ^" x$ b$ q9 c* I> sales based on the same product and approval. We are interested in the
0 k8 s: I" ~9 g+ D* B> following specifications:
+ ]" `2 W" F9 _& ^% T>
0 f& S, O; J3 C! ] > - 2 inputs at the Transmitter with three possibilities;
& {9 S$ J% {: @ > 2 analog
! B3 u/ h9 s' n/ z W> 2 digital
+ N; R4 A/ ]4 q( B& \3 n6 R! }> 1 analog and 1 digital
! Z7 a* d# }3 P>
, W) I1 P+ z+ ?0 p8 v6 H> - 2 outputs at the Receiver with three possibilities to match inputs
+ c" O$ I! T; `, q >
% z& J" H/ D) Q! ~. x- ` > - Ability to configure/define analog Transmitter input ranges through
) U; P0 H2 U) K% g) B > simple programming method to correspond with full-range analog Receiver
. u7 \- w2 }! z> outputs (0 - full voltage).
) z$ y8 u; \/ ^/ U >
B; x& J3 ?! I, {+ h- J> - Ability to configure and set sample rates for the inputs.
8 j" j- e( L/ X- O( E>
5 u @; t" p, r0 ~% c% n+ Z* F. I4 l, D > - Digital output on Transmitter that turns on during the sampling period.
" Y. M! Y1 W @7 M3 l% O4 { >
5 m$ c0 `2 \6 N: u > - Ability to configure a power saving Sleep Mode in the Transmitter by
, v# |* s( j) E2 B$ x# ? > both software control and input hardware control.
: I% o% p- W- g+ g9 j >
+ ?; _% Z* _# R: ? > In order to configure the units, we would need a way to make the
6 r( H2 S0 F6 D. U) T5 u> settings. This would preferably be from a computer terminal so that
8 D8 S" d- p& K > configurations can be saved or easily duplicated for production volumes.
$ A! b( j' H# P" q1 ]0 C > The units should be small and compact with shielding, and able to mount
, s/ g b7 E* U# ]1 \: ^ d> to a printed circuit board with header connector.
! A. u; v6 K4 k4 B0 b >
' U, h, i! W4 q# a* w > At this time, we are interested in samples of a pair of modems that
5 b X+ I8 @& `: s9 D# U: {2 D9 L > might be similar to this proposed system. We do not expect that you
. E& {) H* y4 s1 N > provide all of these specifications at this time. I can describe our
) T; k. i8 p% s& n > immediate application needs in the next email if this project is of
& E5 Z* [) }+ h# I# D0 i > interest to you. Perhaps you can make the samples by those
5 J [, |/ ^# k5 N; u8 y9 N8 E> specifications. This will allow us to test your radios before we move
; `6 v( p' _) D1 g> forward. We are interested in your 900MHz radio to start.
& A( R, E4 D; _5 L( y! N# J3 C. Y% H
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