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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

3 n9 C5 Z& N2 |- y, M( F4 {7 _客户要求如下,如果哪家工厂可以做,请和我联系
6 ?. A2 a( ]; z) L4 l) n8 m% Q > The application that we have in mind is similar to others that we commonly
* d; X5 z5 P' R. \7 F0 n1 `> have. If we were to pay for FCC approval, we would want to use the modem
1 u) @$ y- \# @/ u+ E- ` > units in all similar applications under the same approval number.
# V! l! l0 {, `* S> Therefore, we would like to be able to configure the units to a specific
% `. ^% }; l; k> application. For the business that we do, this approach will yield more
8 m! |; Y: [. m1 o2 Y- U3 I > sales based on the same product and approval. We are interested in the
% @2 K5 \9 j4 E# {+ _0 J A > following specifications:
2 v7 X& R$ I" `* _>
5 N; t y0 J0 t- p2 ` > - 2 inputs at the Transmitter with three possibilities;
, E! m$ m w& ~% ^ M" M8 i > 2 analog
) g3 ]$ ]& B; T! E1 E5 l& V/ L& l > 2 digital
. n- i0 J. `" D/ i! T> 1 analog and 1 digital
3 _2 A% h x! S% T>
( ^' M( {- a) B: _/ f1 Y > - 2 outputs at the Receiver with three possibilities to match inputs
& n- x. X4 R5 I. @6 y4 ]$ `- O>
/ k4 g) o" y/ N: s* L0 e: X4 J> - Ability to configure/define analog Transmitter input ranges through
# s+ S q v/ s9 g+ I > simple programming method to correspond with full-range analog Receiver
% y# k8 A' I4 c% [' S7 k8 H > outputs (0 - full voltage).
2 w0 @- v' I; d& q! Q( X4 A7 | >
7 A( h# D$ x" W) K > - Ability to configure and set sample rates for the inputs.
% f( m, G! D3 W/ G, M9 s, V6 e>
2 a9 Z/ a8 I! W0 j3 J> - Digital output on Transmitter that turns on during the sampling period.
% p# o6 ^9 }: q6 U >
- Y$ v/ Q8 c0 Z/ z6 W > - Ability to configure a power saving Sleep Mode in the Transmitter by
- G3 d1 |8 c2 P1 Y- ]% L+ r6 \9 \> both software control and input hardware control.
/ u- o$ }/ v5 U _ >
2 R# W$ ]3 H, Y U3 G > In order to configure the units, we would need a way to make the
, V( n3 a/ Q* f5 B$ w> settings. This would preferably be from a computer terminal so that
. y. ^. A8 H( z2 i> configurations can be saved or easily duplicated for production volumes.
( K- S* q# V& w+ m+ g; G! Z0 F( o > The units should be small and compact with shielding, and able to mount
) \9 \# ^# s. v% r t0 ?- Q > to a printed circuit board with header connector.
6 k. w5 }1 v" M>
8 y3 v$ V& M9 M) f# t, X> At this time, we are interested in samples of a pair of modems that
! `1 v, s6 l2 b4 g' F% R( Z$ V> might be similar to this proposed system. We do not expect that you
6 S' a, s% I4 z% j% H( f* C > provide all of these specifications at this time. I can describe our
9 |1 a0 b! C6 n> immediate application needs in the next email if this project is of
; j2 H" q3 `1 n2 m > interest to you. Perhaps you can make the samples by those
& ~& e/ Y4 D5 ]# d> specifications. This will allow us to test your radios before we move
4 I, V+ K* Z8 y/ D$ `% Y> forward. We are interested in your 900MHz radio to start.
9 {3 X% d+ S6 `! U* g0 i! F
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