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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

8 \. v4 @. `) H 客户要求如下,如果哪家工厂可以做,请和我联系
$ i, G& F- X! J0 w- e> The application that we have in mind is similar to others that we commonly
; t' v$ d! O' I+ S6 ]$ ~ > have. If we were to pay for FCC approval, we would want to use the modem
1 f% ~% {; Y! K0 N/ Q9 {0 `> units in all similar applications under the same approval number.
& x$ e8 x7 Z. j/ O% C, m: m> Therefore, we would like to be able to configure the units to a specific
# ]3 f! B; f. W$ l5 \( t> application. For the business that we do, this approach will yield more
# L* I# t: x6 i7 l% k* V> sales based on the same product and approval. We are interested in the
; V! E3 C" T) a* i' O# ]% {> following specifications:
( K8 m6 _$ Z' q( C >
9 F" h c1 D/ T/ Q( X9 f> - 2 inputs at the Transmitter with three possibilities;
& ^" |; S8 H7 s* D, m( A$ B> 2 analog
# m! I+ W2 |2 y% Y. l5 A$ e> 2 digital
; z' Z8 \; J `5 b > 1 analog and 1 digital
& H# E6 P0 S3 ? } >
; ~- y: q7 q& ^/ b8 ]: W7 q> - 2 outputs at the Receiver with three possibilities to match inputs
7 V/ w* U/ X5 g>
3 J/ b4 e2 Y# L F > - Ability to configure/define analog Transmitter input ranges through
- s7 F- V/ o# v/ k& t2 n: G5 N > simple programming method to correspond with full-range analog Receiver
! r* a# o" f+ ?2 h" q- P> outputs (0 - full voltage).
( w4 D8 T1 ]/ r# }$ T>
- M$ v7 H- K5 G( J" ]# m0 t0 N% e> - Ability to configure and set sample rates for the inputs.
4 `; \ W# F5 [- ~1 A& G >
& N4 T/ n; o& M> - Digital output on Transmitter that turns on during the sampling period.
- [, t" t( ]' _2 r# C >
4 R3 a2 j8 _7 e- d' x7 k- ?$ ~6 s > - Ability to configure a power saving Sleep Mode in the Transmitter by
* W' H; [' N; s o2 t> both software control and input hardware control.
% e' ^1 P9 }9 u7 s6 y1 `0 @5 p0 O>
- o( O2 V2 T: Y9 U7 m1 U > In order to configure the units, we would need a way to make the
1 k* D' w" h) S& y; _2 L > settings. This would preferably be from a computer terminal so that
0 R) `- Z1 s: T! y+ `6 d7 U: F5 u> configurations can be saved or easily duplicated for production volumes.
& j# h% L7 y- S- J8 a0 S> The units should be small and compact with shielding, and able to mount
# e7 N# O2 J$ ?$ ?( ] > to a printed circuit board with header connector.
# { R0 W9 q. {4 N0 y- } >
& b2 e% d$ l7 T2 V; B: ` > At this time, we are interested in samples of a pair of modems that
l, K4 d O7 \6 H' u& v6 v! x > might be similar to this proposed system. We do not expect that you
# {; ^; E; K2 U> provide all of these specifications at this time. I can describe our
( ~& T( B+ c2 T! u> immediate application needs in the next email if this project is of
n+ i/ b3 r( T# a1 w" F1 O> interest to you. Perhaps you can make the samples by those
1 K! W! W' ~8 s+ |2 p- h+ w1 F& h- D> specifications. This will allow us to test your radios before we move
z# N6 G" G! a7 G4 u, q7 a8 e$ b > forward. We are interested in your 900MHz radio to start.
$ W% Q1 n& Z5 s: D0 e6 Y4 d0 g4 @+ p
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