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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

5 ?- ]5 j. \% ~0 D# ^( C+ N) M 客户要求如下,如果哪家工厂可以做,请和我联系
) a2 @; c; t$ ?> The application that we have in mind is similar to others that we commonly
$ Z$ S4 ~. t6 v8 X1 @ > have. If we were to pay for FCC approval, we would want to use the modem
: g3 ]# O4 ]# v- P+ ^> units in all similar applications under the same approval number.
& v& T R: z5 r. ~; k8 l* q> Therefore, we would like to be able to configure the units to a specific
" y* H/ X3 \9 m$ _> application. For the business that we do, this approach will yield more
, i- w b, `9 N8 D% g+ Q > sales based on the same product and approval. We are interested in the
4 U. E; @2 O, g. R > following specifications:
- E$ }0 Q, _- B+ d7 p/ x) [- K >
, O* C. \0 M7 {. G' `7 b i8 i> - 2 inputs at the Transmitter with three possibilities;
: q* k r/ A0 f/ z0 [- o" c$ u > 2 analog
. l2 B( _& i x; x6 h( e5 L6 ^> 2 digital
. J& M/ }5 g* ^4 |& }" ` > 1 analog and 1 digital
" v1 _: ~6 W2 j* C' Q# B4 i >
& O4 }1 u" o! r8 C> - 2 outputs at the Receiver with three possibilities to match inputs
$ t7 Z8 f, E3 {, v >
* p6 h# B4 Z" O. E' a: Z > - Ability to configure/define analog Transmitter input ranges through
6 {# k s7 X% T7 H3 T > simple programming method to correspond with full-range analog Receiver
6 R; M( I/ V0 n; L/ b > outputs (0 - full voltage).
/ l3 W& v @7 j9 n >
8 I A9 o& m e1 w5 c% _9 Y# s> - Ability to configure and set sample rates for the inputs.
9 t0 J- M4 ~2 J- k# B+ } x, [ >
: T3 j" u# v# p+ a. p# ~5 J> - Digital output on Transmitter that turns on during the sampling period.
0 k( N6 K* l5 f) I! ]" U >
4 k W* s# j5 _1 P > - Ability to configure a power saving Sleep Mode in the Transmitter by
8 }" H, I/ o" C! h) l> both software control and input hardware control.
# s( y% S+ q( V! e# ^- Z! @>
! g( E( ]/ V4 w; a > In order to configure the units, we would need a way to make the
$ V! p* Q4 Q. l, s+ i6 b > settings. This would preferably be from a computer terminal so that
0 p7 Z+ C3 ^2 H! C: y8 c( x Q> configurations can be saved or easily duplicated for production volumes.
: ~, A+ t" K7 Y2 s$ c > The units should be small and compact with shielding, and able to mount
3 @9 Y: G* X7 z7 @7 C i > to a printed circuit board with header connector.
4 b) N0 Y% ~( q5 l >
+ W+ m3 z5 s: T! a- z4 t > At this time, we are interested in samples of a pair of modems that
( j* D; l& ?) i# [- X> might be similar to this proposed system. We do not expect that you
, M+ U) z0 z7 b3 R, u > provide all of these specifications at this time. I can describe our
8 u" v! I6 O% [, w > immediate application needs in the next email if this project is of
+ G( U) ^$ {6 c/ A2 G> interest to you. Perhaps you can make the samples by those
, P9 [* U( ~' g) {% Z$ m> specifications. This will allow us to test your radios before we move
. ?0 q# o2 z/ U% T5 X( K; o > forward. We are interested in your 900MHz radio to start.
0 D+ ]1 `* a; F5 c8 |' L! E
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