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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

& s; R6 l& ?' C/ H5 Q& Y 客户要求如下,如果哪家工厂可以做,请和我联系
5 T+ N0 C' G0 p) C# R0 t* L> The application that we have in mind is similar to others that we commonly
' a6 `( i( H$ E8 ^$ [# i* v> have. If we were to pay for FCC approval, we would want to use the modem
' {% ^7 f8 t: x7 V> units in all similar applications under the same approval number.
6 i8 I/ O( s$ {! [' U: `% @3 c> Therefore, we would like to be able to configure the units to a specific
# u" n P' \' Y- M" e" u > application. For the business that we do, this approach will yield more
( a. p' ]) }8 |5 U$ h > sales based on the same product and approval. We are interested in the
5 c- Z$ A% V$ s/ N> following specifications:
2 m3 l, J. @' |" y# A>
7 _- s; h9 b+ `> - 2 inputs at the Transmitter with three possibilities;
3 B! u, l' w0 m > 2 analog
; Y: R0 j. s( g4 A$ t9 J > 2 digital
' X( s& K3 }8 q6 }; A> 1 analog and 1 digital
/ N) S3 J* ^# n" K' \>
* H! Z: D2 m" |6 g' t B > - 2 outputs at the Receiver with three possibilities to match inputs
( S# F1 q5 N( l$ X >
& y9 X7 z% H/ _5 P0 l> - Ability to configure/define analog Transmitter input ranges through
: H# a% i# V4 y) ~' B > simple programming method to correspond with full-range analog Receiver
. x, m, ~9 s% ~4 o1 y7 ~; B> outputs (0 - full voltage).
1 p5 d% r' U8 E% x$ p4 {1 h( h* \: F>
' H2 G9 q# G8 ]1 z7 y8 ^' f& y> - Ability to configure and set sample rates for the inputs.
( _+ f) y9 Z" s" l, [ >
/ ~+ F* L" w- B" Y" ` Y2 ^> - Digital output on Transmitter that turns on during the sampling period.
! I9 i. ?, G! m' Z: `. r>
: O m6 {0 @: b1 Z( ~/ \ > - Ability to configure a power saving Sleep Mode in the Transmitter by
1 z; u- [) c) F* \/ s > both software control and input hardware control.
3 O# Z& X# {1 q' d- I! ?+ Q >
: W; Q d! Z' t5 C. _ > In order to configure the units, we would need a way to make the
2 n- b: b( T( S > settings. This would preferably be from a computer terminal so that
9 ^: x5 D7 _4 ~! ~4 I) Z> configurations can be saved or easily duplicated for production volumes.
! t" _$ @; i2 n& l > The units should be small and compact with shielding, and able to mount
; m% ~3 [" T/ B+ M) b > to a printed circuit board with header connector.
% m* g! b( Y$ i3 M >
' c9 f+ Z T9 E- o: F$ H" a > At this time, we are interested in samples of a pair of modems that
- ~$ P n7 Y& P5 U. m. e > might be similar to this proposed system. We do not expect that you
( t2 i7 S4 T& E& @" c, S > provide all of these specifications at this time. I can describe our
5 G/ @& i! w3 x% {& q5 o> immediate application needs in the next email if this project is of
. L! \0 L1 \4 r5 I7 p* |$ k > interest to you. Perhaps you can make the samples by those
+ F. b# @; k% S > specifications. This will allow us to test your radios before we move
. V- [( @% Z* T; r' @8 m" T; [> forward. We are interested in your 900MHz radio to start.
( l. `; M6 r5 s# M+ s N: t& ?
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