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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

! A, |' R9 t9 ^* C+ U) @6 k$ v3 i- j: e客户要求如下,如果哪家工厂可以做,请和我联系
# E0 R) {9 r+ C: _0 T) t/ c+ H> The application that we have in mind is similar to others that we commonly
* b1 S$ q# @. R > have. If we were to pay for FCC approval, we would want to use the modem
9 I0 _! x% ]- d& c* T > units in all similar applications under the same approval number.
' Q* y/ i$ Q# a' l2 z1 w> Therefore, we would like to be able to configure the units to a specific
+ [5 E1 h( J" E. Z! y# h* o > application. For the business that we do, this approach will yield more
# p5 v- m4 k% F1 K: j: ~> sales based on the same product and approval. We are interested in the
& z0 ?1 v2 M( b; I! Q7 ~6 f > following specifications:
& x. }6 W7 o8 w' r& ] >
0 W- o& [& E. f. S9 M/ `/ V6 Z; }> - 2 inputs at the Transmitter with three possibilities;
6 j6 w6 N, o0 y7 J9 i1 i* M! T0 B> 2 analog
, {4 R7 v0 [* Y- Q4 B& Q> 2 digital
8 {2 H: @; H% }: K> 1 analog and 1 digital
, @; o8 R* Z) Y5 W3 b2 L$ |& T>
2 d. h* c- c9 H: y/ Y > - 2 outputs at the Receiver with three possibilities to match inputs
3 P+ j! ~) e8 l* }+ e>
( \% G8 E, \- a! t0 V > - Ability to configure/define analog Transmitter input ranges through
$ U4 _1 n* _3 [! i> simple programming method to correspond with full-range analog Receiver
, x. G1 [- z; s( }/ c* `> outputs (0 - full voltage).
, _! F1 `5 C9 O# v8 z8 }>
/ \1 W6 Z. ^+ H; O! @4 D9 B0 K > - Ability to configure and set sample rates for the inputs.
/ i# [$ A) x9 ~# m- r" f >
6 b% b6 @& P; W% Q, ^% T6 v, S6 q > - Digital output on Transmitter that turns on during the sampling period.
. }, C2 g/ L& O8 e1 W9 s >
% K O3 _0 O4 x5 v' S+ b > - Ability to configure a power saving Sleep Mode in the Transmitter by
3 g$ h% E5 j! d1 N2 ? > both software control and input hardware control.
9 T9 v+ U- F, A6 V >
1 z* N4 r( i6 Y > In order to configure the units, we would need a way to make the
0 L& f/ R' Z% I g$ z > settings. This would preferably be from a computer terminal so that
7 b+ V0 g* z# O1 g* W> configurations can be saved or easily duplicated for production volumes.
1 S" N$ P3 k& f4 Y7 ]' a > The units should be small and compact with shielding, and able to mount
% L0 O- v, q* v9 t" t > to a printed circuit board with header connector.
$ E' W5 |+ {* A- c/ _2 a+ W; y >
+ q! u T7 P2 A> At this time, we are interested in samples of a pair of modems that
Q/ _5 S4 Y$ S4 a9 @5 ^' n, X5 J> might be similar to this proposed system. We do not expect that you
& _0 E* P1 u2 H5 v# W > provide all of these specifications at this time. I can describe our
! l. f' V/ J0 V# T > immediate application needs in the next email if this project is of
( m* R- {& t( ~/ j6 } > interest to you. Perhaps you can make the samples by those
( I6 _" X. t; V/ Q5 q2 ~8 i> specifications. This will allow us to test your radios before we move
+ {: r `9 Q0 s& \: s6 V* j3 Y. z > forward. We are interested in your 900MHz radio to start.
3 C. u3 D% p+ J, z) r
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