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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

r/ u) n P& P. r* s! r1 V客户要求如下,如果哪家工厂可以做,请和我联系
7 W, J# R# x2 S9 k> The application that we have in mind is similar to others that we commonly
* B- ~$ k2 C3 R" ? > have. If we were to pay for FCC approval, we would want to use the modem
4 g4 L* B4 d! Y9 a) A> units in all similar applications under the same approval number.
" C0 s" `6 E+ d > Therefore, we would like to be able to configure the units to a specific
7 |3 W ^& n( j4 x > application. For the business that we do, this approach will yield more
: E& N" ~/ B6 ]1 }) X5 M> sales based on the same product and approval. We are interested in the
" x' x' L o7 C! n/ B9 @/ ]> following specifications:
* z( I4 W& V( N3 P' }" `) d# A >
}5 P1 v4 w2 a8 u; w" n" h7 } > - 2 inputs at the Transmitter with three possibilities;
. E) H& |3 d5 b3 N4 v> 2 analog
& j6 B& [6 B/ B" i$ W. m E> 2 digital
% R( {% o! c3 B3 o) p1 ~> 1 analog and 1 digital
\, {. c9 ?1 @4 p>
0 ]* {: _- X2 I/ @4 q# N. k& { > - 2 outputs at the Receiver with three possibilities to match inputs
- y% V0 Y9 [ t>
8 D5 k/ W1 u7 t5 x > - Ability to configure/define analog Transmitter input ranges through
6 e# u* `0 G8 d; g a> simple programming method to correspond with full-range analog Receiver
: ?6 b* I+ {5 [ > outputs (0 - full voltage).
7 x. X6 r/ `5 |" \8 X >
; e2 h# J, }4 L5 z6 B" B" U* Z: l" d> - Ability to configure and set sample rates for the inputs.
- p7 {( i" v0 H' Q >
+ m+ ]* s8 w1 N8 r1 L4 q* n> - Digital output on Transmitter that turns on during the sampling period.
e# D; p" l. h >
4 ~, s; H y$ B( y> - Ability to configure a power saving Sleep Mode in the Transmitter by
& @9 H3 A' X" u) M; \! H5 @2 ~+ H( ~> both software control and input hardware control.
, P# o! B) |2 T$ L$ p: ^4 T$ c) z >
$ a8 g% d$ Y& @5 ^> In order to configure the units, we would need a way to make the
$ I! h- g" q, x& j% r8 q> settings. This would preferably be from a computer terminal so that
9 \9 G( P' M3 U > configurations can be saved or easily duplicated for production volumes.
9 A6 }) ^) l+ _, T9 y- u > The units should be small and compact with shielding, and able to mount
: I3 O3 I }2 \4 D. \* v! U6 m> to a printed circuit board with header connector.
2 B: {2 ]8 B, G9 V8 ]$ t7 n q Z >
% {. i! d, E+ n* i$ { > At this time, we are interested in samples of a pair of modems that
$ S8 L0 q8 s+ h3 B5 G% j+ d > might be similar to this proposed system. We do not expect that you
& A) r' K- B+ L1 F# x% x > provide all of these specifications at this time. I can describe our
T! z/ a3 F7 v! x" r> immediate application needs in the next email if this project is of
7 ?1 T# o8 ]1 q, y2 u> interest to you. Perhaps you can make the samples by those
; Q1 I6 H* E7 t+ o1 k > specifications. This will allow us to test your radios before we move
4 ^5 R: Z0 O5 T4 m4 ]! k> forward. We are interested in your 900MHz radio to start.
6 c2 A( b. q; _, c
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