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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

) V+ n. G& }9 {# ^% c7 Y客户要求如下,如果哪家工厂可以做,请和我联系
; J! X( K- Q8 i% `4 }4 e" {& G> The application that we have in mind is similar to others that we commonly
- @. K+ @0 C9 `, o> have. If we were to pay for FCC approval, we would want to use the modem
# q8 x0 w, @+ x6 Z1 J> units in all similar applications under the same approval number.
( @" k& w( B. K > Therefore, we would like to be able to configure the units to a specific
" H0 Y6 R$ y% L. l- \- |! a, n> application. For the business that we do, this approach will yield more
8 N. d+ [7 l1 d> sales based on the same product and approval. We are interested in the
# e3 y; `, z3 M. ?> following specifications:
* ^! g; x7 g2 p; [, u >
. [2 s7 E' i7 X+ ]/ ?% e> - 2 inputs at the Transmitter with three possibilities;
3 W1 ]9 E* _! y% g& O> 2 analog
. R6 B% d) K, {% J1 i5 S> 2 digital
1 D* q" ]. E$ m$ E9 ~> 1 analog and 1 digital
1 Y' R* t' C/ s5 a$ O4 G>
* t' ?( `+ C- z& c% I> - 2 outputs at the Receiver with three possibilities to match inputs
! g2 R3 p+ k c0 X! A3 c$ R! ?6 ? >
- T: K$ X% ~7 h+ ]# A1 Q! y > - Ability to configure/define analog Transmitter input ranges through
9 \9 F# L5 K n1 X" }> simple programming method to correspond with full-range analog Receiver
6 r" f( m9 a# `0 L; B+ W8 S- d> outputs (0 - full voltage).
! l9 v: C" N$ c2 X>
1 a8 j7 v0 U6 H > - Ability to configure and set sample rates for the inputs.
+ [" A9 m Q+ u9 u! L$ E; @; E3 o>
& r3 Q: @* G* P" `; F p! m N3 x > - Digital output on Transmitter that turns on during the sampling period.
; i& r" G3 _& ]>
- w9 D! W; d7 }2 v8 ^( L! I2 J' x > - Ability to configure a power saving Sleep Mode in the Transmitter by
" W: |6 L8 ~ \. J' \8 ~8 a> both software control and input hardware control.
" \/ i$ k1 h0 R, }$ P9 {>
0 n4 o6 |5 U' ? > In order to configure the units, we would need a way to make the
, C3 e# w2 A& b. K+ j* E1 [$ W# I> settings. This would preferably be from a computer terminal so that
$ o3 n5 E0 J6 U. L: k* H a( J > configurations can be saved or easily duplicated for production volumes.
q4 a: v- i" j# v) [; I> The units should be small and compact with shielding, and able to mount
& \: j) D9 F9 c4 h1 t1 I P > to a printed circuit board with header connector.
6 J- C6 [+ ?* ` r>
* K5 [; c% \+ V2 O) d > At this time, we are interested in samples of a pair of modems that
3 }* U* q: c, P J, |; N' B> might be similar to this proposed system. We do not expect that you
8 [7 l; `3 f3 \> provide all of these specifications at this time. I can describe our
) A' @" a( P# }$ i$ Q' B > immediate application needs in the next email if this project is of
9 o& l. H) G6 Q, V, j > interest to you. Perhaps you can make the samples by those
$ j: H8 Z9 X+ p/ @0 o+ Q/ U6 e > specifications. This will allow us to test your radios before we move
! P( o/ c* V g3 y > forward. We are interested in your 900MHz radio to start.
N: X& _+ a/ y; x3 P9 u
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