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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

* X& O! e" Z6 I0 `: q 客户要求如下,如果哪家工厂可以做,请和我联系
% ~' [% V9 R! Q8 N+ c+ {. {6 H' h > The application that we have in mind is similar to others that we commonly
' w# d( Y2 l |6 C* V > have. If we were to pay for FCC approval, we would want to use the modem
# E0 l" K& n( z( { > units in all similar applications under the same approval number.
8 c* J% u! w& y5 i; I) w> Therefore, we would like to be able to configure the units to a specific
1 ~1 T7 T: z$ O& K( p' M; I> application. For the business that we do, this approach will yield more
8 P' E9 I0 m8 \( ~4 d > sales based on the same product and approval. We are interested in the
" b4 s" A9 q6 V# q > following specifications:
O' H/ i4 m; [3 X. G, w>
: I) j4 Y" H! q2 M) w> - 2 inputs at the Transmitter with three possibilities;
* l ?! U2 l1 y T> 2 analog
8 \4 J7 }6 b8 z% P5 ]> 2 digital
; g' v( `3 [2 u7 Z& E# ^ > 1 analog and 1 digital
6 J1 T( U6 h( B: C' Q1 z# [ >
`2 X; K; n0 {/ l, p, D6 d, B> - 2 outputs at the Receiver with three possibilities to match inputs
" @7 X: B" k2 n; z>
* m+ |* _! a) C$ k > - Ability to configure/define analog Transmitter input ranges through
" i( O( ?/ _3 k6 ~+ x# v+ P9 V > simple programming method to correspond with full-range analog Receiver
+ B$ l3 U7 E% D8 v7 |) I* m4 b> outputs (0 - full voltage).
/ g( R, ?. y& @, M >
; y- M+ F' I' {8 {> - Ability to configure and set sample rates for the inputs.
$ `; s# O3 V2 {# {3 X: S >
$ P8 S7 o6 H$ R: C! g> - Digital output on Transmitter that turns on during the sampling period.
- u/ h: a* t# ]+ N" D. d2 x >
9 Q( v( ^# U E* M2 k* @* i) L> - Ability to configure a power saving Sleep Mode in the Transmitter by
( {( R. B& V7 b3 n# Y$ B1 J; g$ t > both software control and input hardware control.
h+ l' [% H# J* `>
1 U2 M8 J! y- R# }8 K6 b> In order to configure the units, we would need a way to make the
+ [+ |3 j# I( l" u) x6 g7 N > settings. This would preferably be from a computer terminal so that
: O' d( I: l+ F4 O7 y > configurations can be saved or easily duplicated for production volumes.
8 |8 H+ O- J( r& b* C: d& [4 E> The units should be small and compact with shielding, and able to mount
$ z2 }4 ^$ W& k) y > to a printed circuit board with header connector.
* A) W$ J; W$ ~( a: A s >
! o) c! m, v; W: V) u> At this time, we are interested in samples of a pair of modems that
( i, w7 A: e5 Q' i& s+ m> might be similar to this proposed system. We do not expect that you
3 I& m% d* K2 K& _# l0 K > provide all of these specifications at this time. I can describe our
i/ ` D" S4 l3 _. `" d> immediate application needs in the next email if this project is of
4 `- S( X' x1 k- j > interest to you. Perhaps you can make the samples by those
7 _' _5 U. M; b > specifications. This will allow us to test your radios before we move
' v- ~8 \1 \, n" b3 K> forward. We are interested in your 900MHz radio to start.
2 ^" w9 `9 q9 H
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