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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

2 Y8 U! j2 Q9 x客户要求如下,如果哪家工厂可以做,请和我联系
4 s% @! [2 L: _1 K# c. i > The application that we have in mind is similar to others that we commonly
: H+ _# w+ ?. W> have. If we were to pay for FCC approval, we would want to use the modem
+ x3 [( x2 _# @* X0 S% C2 a> units in all similar applications under the same approval number.
! n) n4 O* e( d2 Q> Therefore, we would like to be able to configure the units to a specific
* |6 \9 R4 r6 N; J+ z' Y6 E> application. For the business that we do, this approach will yield more
; o2 x2 A6 G1 X& {& e0 `3 L > sales based on the same product and approval. We are interested in the
j* `* ~2 v+ ^1 g y% M > following specifications:
L; D8 b6 v% j1 n# K5 S& l3 J >
- y' C& J6 z+ i& H" d) F/ [' { > - 2 inputs at the Transmitter with three possibilities;
) j# v$ P" U) d+ d! ~! s2 ~/ C4 q> 2 analog
* {1 \+ \. v% \3 o; e8 D> 2 digital
% v% e4 `& Z% }- L0 v> 1 analog and 1 digital
0 M0 X8 U) ?+ E+ K: v1 j+ [ >
2 P# a- i; Y3 L2 | > - 2 outputs at the Receiver with three possibilities to match inputs
1 ^) x8 \$ z0 o* @/ C >
& K" N% }& [' z& e: N1 a( Z> - Ability to configure/define analog Transmitter input ranges through
- H i! x# R: u7 Q# w3 H> simple programming method to correspond with full-range analog Receiver
. a) F2 D! y& l2 l! N. i9 ^ > outputs (0 - full voltage).
4 j, K6 m1 c; w7 f% I0 [( I>
3 M! H3 }5 U! Q& n) @ > - Ability to configure and set sample rates for the inputs.
; l Y; {( _7 ^# g >
) r. @5 F5 j) O) q# U > - Digital output on Transmitter that turns on during the sampling period.
) K0 {. i7 _# s0 I ]. n >
/ h: v7 c T$ Z; h8 ~, e> - Ability to configure a power saving Sleep Mode in the Transmitter by
! M2 b, ~& P: f/ c. Z) n4 `% A > both software control and input hardware control.
9 P+ j- |) e# Q+ A/ p" C6 P >
# r* W# o% p6 q% t> In order to configure the units, we would need a way to make the
3 p; ^: W0 F4 m5 ` \; Q > settings. This would preferably be from a computer terminal so that
; l8 j3 Z. V# d% O) s/ b* ^9 v# O> configurations can be saved or easily duplicated for production volumes.
; R$ j/ J/ W3 b0 n* O > The units should be small and compact with shielding, and able to mount
0 h0 \7 k. N! g> to a printed circuit board with header connector.
+ g+ [- ^ `) i7 h) M9 _>
) O' ]/ Z6 b8 I O# v> At this time, we are interested in samples of a pair of modems that
1 \/ l6 \. N9 R e# ] > might be similar to this proposed system. We do not expect that you
8 S( V. ]8 }3 w9 T9 n- @ > provide all of these specifications at this time. I can describe our
& q" { p7 f# w> immediate application needs in the next email if this project is of
' X6 U: k+ A/ M* o; k+ |> interest to you. Perhaps you can make the samples by those
- Z# A% b5 r+ k: C, Z# D* t- B- M> specifications. This will allow us to test your radios before we move
$ U5 D" `: L R( p9 @( F4 n8 t > forward. We are interested in your 900MHz radio to start.
' f, c4 N4 o2 f; m
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