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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

" m) p* h- e/ ~2 X客户要求如下,如果哪家工厂可以做,请和我联系
: A6 h4 d/ W" o: x > The application that we have in mind is similar to others that we commonly
" ?9 I; ~/ H& n4 K > have. If we were to pay for FCC approval, we would want to use the modem
6 g+ s$ F, O) x8 n- Z4 t> units in all similar applications under the same approval number.
4 A" W4 Y4 T. o$ t# ]2 }> Therefore, we would like to be able to configure the units to a specific
) G. ~6 C4 R% A+ V; M. K2 m6 i > application. For the business that we do, this approach will yield more
4 x+ m9 D6 ] |8 u> sales based on the same product and approval. We are interested in the
; b @% { K. d$ [3 S& y> following specifications:
# F9 o. o& H5 ~9 B# x v1 s >
+ T# y* d7 M3 a+ q( F. C> - 2 inputs at the Transmitter with three possibilities;
$ D- u& b9 e% Q2 ~> 2 analog
9 F* ^# K: ]2 z2 T. q > 2 digital
o, J$ s9 B# L2 f% D; P > 1 analog and 1 digital
N9 Y; t, Y$ ?! E# @/ S, o>
# v5 C* I! R: f- G8 \> - 2 outputs at the Receiver with three possibilities to match inputs
. R6 d' k5 E m8 Z9 H+ w0 d; r >
' i# z' a2 v, F2 T, A7 ?> - Ability to configure/define analog Transmitter input ranges through
: e& [0 G3 f5 {, d1 h > simple programming method to correspond with full-range analog Receiver
: l9 {" `3 J$ I$ z> outputs (0 - full voltage).
2 d' r! _9 Y. a! v% `! k>
; }% N$ N' K0 t i7 N> - Ability to configure and set sample rates for the inputs.
$ D. {; K* Z* X: q" N( w6 g+ d>
- E0 H2 H8 j7 [7 ?; G, R) C5 v8 h> - Digital output on Transmitter that turns on during the sampling period.
; i- ?& V$ `& i Y6 |>
/ W9 p5 y% i1 E$ T; Y* |> - Ability to configure a power saving Sleep Mode in the Transmitter by
' `4 M0 W: o6 Y" I9 W7 J> both software control and input hardware control.
6 e$ a0 f) l8 K o. D1 h+ W>
* o v5 U7 O4 j4 O- p0 M* K* e" B> In order to configure the units, we would need a way to make the
; @7 \" e; V" g1 H( `9 _0 U > settings. This would preferably be from a computer terminal so that
, H4 v- _) F/ `8 ?, M; o2 W$ q> configurations can be saved or easily duplicated for production volumes.
. h8 l( Q( W( r4 r0 E0 A> The units should be small and compact with shielding, and able to mount
2 t- ]* S ]+ j) E/ Q! s> to a printed circuit board with header connector.
9 X# Y9 ?. V! g5 X9 J3 J, Y >
8 N0 ~) A& ]+ _1 t2 d7 W$ R0 F> At this time, we are interested in samples of a pair of modems that
7 C, Z4 r) | I; F > might be similar to this proposed system. We do not expect that you
5 l7 i+ `# k, D [6 s > provide all of these specifications at this time. I can describe our
' p: ?. h. f# P; Q& T> immediate application needs in the next email if this project is of
1 Z$ D* p4 z% M+ X+ e7 S( E1 I > interest to you. Perhaps you can make the samples by those
, m! b: u( h( { > specifications. This will allow us to test your radios before we move
8 \2 X# z, D3 e* Q- d> forward. We are interested in your 900MHz radio to start.
: r* ]1 T: w! X- j" A
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