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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

6 _/ O# K% m; S3 P, _ 客户要求如下,如果哪家工厂可以做,请和我联系
- T: z; @; N C0 V> The application that we have in mind is similar to others that we commonly
1 {1 X- d! q- f: L5 \% b> have. If we were to pay for FCC approval, we would want to use the modem
8 i7 E) q# j# k; t3 f> units in all similar applications under the same approval number.
! a# G* e5 m- P7 t; i5 I> Therefore, we would like to be able to configure the units to a specific
0 H" ?# A" q' u. U# h5 Y > application. For the business that we do, this approach will yield more
: x) N/ O8 W! K5 Q' L > sales based on the same product and approval. We are interested in the
9 e5 I* b- K5 b > following specifications:
& w8 M& ^$ J' Z/ w; V>
9 T) b1 Q. F& s' K/ J( ` > - 2 inputs at the Transmitter with three possibilities;
& Z: v& {7 |! G) a/ W9 V* L7 k6 B5 M> 2 analog
7 K) }1 V9 M) u+ I/ Y > 2 digital
8 s4 C* ] z" p9 `" B4 M> 1 analog and 1 digital
6 }, Q* o9 z* o >
0 o+ j% s. X- s* q1 W5 L > - 2 outputs at the Receiver with three possibilities to match inputs
& E0 | I$ r' Y: } >
2 a3 z9 V7 Q/ H% k> - Ability to configure/define analog Transmitter input ranges through
/ M. B: G6 i7 ] > simple programming method to correspond with full-range analog Receiver
1 O. b* z; p0 }( j> outputs (0 - full voltage).
, Y6 s. \) c, ^% T7 l>
: m/ A3 X2 M# `6 G: y; F8 R> - Ability to configure and set sample rates for the inputs.
, [$ e, h- T, S2 ? >
1 ` b( G+ I, c8 z% U! B) L* a> - Digital output on Transmitter that turns on during the sampling period.
9 P4 \" }& e4 A' k- e>
& f" p% H" C- T/ h/ Y0 v" i# F6 s> - Ability to configure a power saving Sleep Mode in the Transmitter by
/ C1 i4 z5 o9 f* t- r8 s- d > both software control and input hardware control.
9 O! v, \ v0 Q$ M >
9 M1 l |" p' y4 \ > In order to configure the units, we would need a way to make the
7 ^# f; P5 H. c+ Y$ h3 w# a9 V: O> settings. This would preferably be from a computer terminal so that
1 T5 p9 s& n4 H( W M> configurations can be saved or easily duplicated for production volumes.
: R4 h; Q( `8 u+ e8 L' m/ Q$ S> The units should be small and compact with shielding, and able to mount
: F+ D0 X" @, Z) ^+ `# ` > to a printed circuit board with header connector.
' O8 W0 T4 w- I. p! f# t >
2 T. w+ Q" \3 T3 _- \0 E+ a+ | > At this time, we are interested in samples of a pair of modems that
8 |' ], \2 ?; b > might be similar to this proposed system. We do not expect that you
" u5 }) X: W- e > provide all of these specifications at this time. I can describe our
% `8 l5 z, f' X' ]1 c > immediate application needs in the next email if this project is of
' l" r" x3 |' q& o, Q& J > interest to you. Perhaps you can make the samples by those
+ T, b! H1 q* d: {0 P& e6 B9 B7 H > specifications. This will allow us to test your radios before we move
' [1 q$ S; u1 i> forward. We are interested in your 900MHz radio to start.
' f8 a/ d0 h2 F- V5 V
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