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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

9 K2 [+ w6 B( T 客户要求如下,如果哪家工厂可以做,请和我联系
9 N8 r C) K: }- o! `> The application that we have in mind is similar to others that we commonly
: d, Z6 g+ u8 c" M > have. If we were to pay for FCC approval, we would want to use the modem
* l( M$ [ M1 X. n. o > units in all similar applications under the same approval number.
, F) V+ @# F# w1 y6 S. q> Therefore, we would like to be able to configure the units to a specific
$ c7 F! N+ @: U( t1 Y- H > application. For the business that we do, this approach will yield more
; f, s$ ^1 \$ D& U > sales based on the same product and approval. We are interested in the
$ C( V# X' M/ W% O& P> following specifications:
+ J5 R8 K/ c6 r" x; j# l4 D >
; W* x( G1 O3 F( J8 `% ?1 C" x > - 2 inputs at the Transmitter with three possibilities;
3 w1 e$ L* l/ q3 Y# m9 [5 e) |> 2 analog
- A! Q2 t9 f g h > 2 digital
1 W3 l& B1 c- M L> 1 analog and 1 digital
2 ?6 ~ g/ y6 V6 ]* i>
% o! _& j, |+ N3 L0 x- t > - 2 outputs at the Receiver with three possibilities to match inputs
9 J0 p) a# s' b3 ]- @) Z! G >
' {+ ?& o% i; B' @> - Ability to configure/define analog Transmitter input ranges through
9 H, ~- k n: K9 m3 z: E0 s4 R> simple programming method to correspond with full-range analog Receiver
0 E1 H. b* X. j > outputs (0 - full voltage).
7 R; Y/ ^. z* } >
6 k3 P9 r8 ?0 Z6 L1 }6 r> - Ability to configure and set sample rates for the inputs.
) ~- V6 h) J' {* u+ W7 ?% O>
% ?+ X& o6 p) [. z; _ > - Digital output on Transmitter that turns on during the sampling period.
y7 G4 l/ Q5 N k >
* s2 Q/ C2 a" ^& a6 x > - Ability to configure a power saving Sleep Mode in the Transmitter by
; s, i' n8 O7 b& a) {, e7 r4 g> both software control and input hardware control.
( B) g% i% r' z0 K >
$ |; o# R1 |3 ~7 s1 A > In order to configure the units, we would need a way to make the
7 e2 Z! v3 e3 o1 E/ s" @9 m1 Z' n > settings. This would preferably be from a computer terminal so that
; @+ H+ O7 O: T: L0 \$ R> configurations can be saved or easily duplicated for production volumes.
" U$ |; Y) f. [# p$ _$ H3 T > The units should be small and compact with shielding, and able to mount
' m; e4 }# F% I> to a printed circuit board with header connector.
) Q- h# K; D. d$ ^>
1 {# t. a% ~/ H( p* v- C2 @> At this time, we are interested in samples of a pair of modems that
; ~6 r5 Y! F# Y- a > might be similar to this proposed system. We do not expect that you
' l# A5 }4 ?5 ]6 o# l > provide all of these specifications at this time. I can describe our
5 q+ E5 A" [- ?, r" K# s> immediate application needs in the next email if this project is of
6 R: X2 {/ @. M> interest to you. Perhaps you can make the samples by those
2 k1 @: Y7 E/ B+ `2 k> specifications. This will allow us to test your radios before we move
' X" X: t3 ?1 f0 t* V > forward. We are interested in your 900MHz radio to start.
2 T5 }7 z4 k% i& W9 y
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