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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

4 t1 _" O; |# P) _: V8 r/ h 客户要求如下,如果哪家工厂可以做,请和我联系
: D/ r& |9 i2 L) y > The application that we have in mind is similar to others that we commonly
2 X! b" c4 u3 I9 Z4 B > have. If we were to pay for FCC approval, we would want to use the modem
4 h2 g& E, A; c4 w* l$ } > units in all similar applications under the same approval number.
" S5 |- A c- g% j6 q! H' u3 Z, \ > Therefore, we would like to be able to configure the units to a specific
3 H* @6 f: Y/ o& ^> application. For the business that we do, this approach will yield more
* R+ }# \- e- S > sales based on the same product and approval. We are interested in the
* a* X5 h# d3 x& Z& D$ U1 q > following specifications:
% H- T& }( l5 H# Z>
- r7 a2 J& Z* o1 t> - 2 inputs at the Transmitter with three possibilities;
3 H6 |: c% i, |- _; [/ q > 2 analog
$ z/ H8 e5 w% r6 l9 }: k: r" C9 j> 2 digital
- a, ~* Y K/ w1 [ > 1 analog and 1 digital
: Z' O5 i6 ?) ~>
4 B0 n5 I; X: {, W9 c > - 2 outputs at the Receiver with three possibilities to match inputs
. b v+ K! p( W& ?& M/ c) ]9 m' `& \ >
2 i9 F0 r% y1 c, Z& A# e, G> - Ability to configure/define analog Transmitter input ranges through
3 r A, ?* z, r, x3 b- B9 N2 K > simple programming method to correspond with full-range analog Receiver
0 o2 L, V: p5 F' o. ~> outputs (0 - full voltage).
+ j. _$ P2 k3 k- f4 z>
3 R( i+ j3 D* c> - Ability to configure and set sample rates for the inputs.
9 T9 x+ ^6 Y3 {- F >
1 n3 x( R. C+ o5 O: a* p > - Digital output on Transmitter that turns on during the sampling period.
4 n6 S# c# m7 S3 ~9 y9 x5 o+ ? >
. ~: S% p; Z6 ?! m9 } > - Ability to configure a power saving Sleep Mode in the Transmitter by
& \- \6 y0 O; }7 P> both software control and input hardware control.
4 W" X" I5 h( i3 | ? >
1 X- l' N+ f$ C> In order to configure the units, we would need a way to make the
1 b+ ^+ t I( X9 A( ?7 \& w> settings. This would preferably be from a computer terminal so that
4 f( v' T* p( m2 b> configurations can be saved or easily duplicated for production volumes.
4 E( q% w5 `; }3 x. B5 Y7 l9 k$ S> The units should be small and compact with shielding, and able to mount
5 D# E$ J! y- J/ Q6 M$ p> to a printed circuit board with header connector.
/ w( S. z: M# j/ } >
/ |+ c7 L! J- i! O> At this time, we are interested in samples of a pair of modems that
% v* ~0 i/ N9 ^1 {( `6 }: a. E6 R> might be similar to this proposed system. We do not expect that you
1 o& F2 ]+ Y$ X) \* D6 m) N9 G> provide all of these specifications at this time. I can describe our
$ }- n! P) C, F> immediate application needs in the next email if this project is of
: ^9 O+ K: V6 S/ \; y0 H > interest to you. Perhaps you can make the samples by those
. g6 \! u/ J5 g2 p4 _4 ?! E> specifications. This will allow us to test your radios before we move
5 f8 a- P2 F) o; Q> forward. We are interested in your 900MHz radio to start.
% e2 }- l& Q9 O# E1 p7 t( M/ i
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