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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

( s' c+ ?; {* G+ f客户要求如下,如果哪家工厂可以做,请和我联系
0 _. J' t( m1 h+ q; x > The application that we have in mind is similar to others that we commonly
+ V" }9 e* Z9 x" q. w> have. If we were to pay for FCC approval, we would want to use the modem
$ T) G y, P7 _% q' L% w> units in all similar applications under the same approval number.
1 |7 t! E. c' z& O5 d8 T > Therefore, we would like to be able to configure the units to a specific
, s9 J% K4 }( j8 Y' O' E; D> application. For the business that we do, this approach will yield more
q0 r/ C2 J; y' N > sales based on the same product and approval. We are interested in the
2 N0 v( w" x0 X. F: z6 I" N > following specifications:
4 o; T# w. T( A/ `7 ^4 N>
% X" ^% `. o4 x; s6 F9 N! m > - 2 inputs at the Transmitter with three possibilities;
* \ c* Q6 f' n. W% D0 t> 2 analog
+ P4 J6 U3 z. { > 2 digital
" V& }! g) a9 J/ G4 e3 C > 1 analog and 1 digital
8 o5 B: ?0 G$ D4 K >
h$ C! o& P4 M! p$ H/ W) o> - 2 outputs at the Receiver with three possibilities to match inputs
, C+ z7 i6 h4 t! G$ h0 A >
' Z! z# T* l: P; @' b+ S7 c > - Ability to configure/define analog Transmitter input ranges through
; t0 c& V [# T8 y0 u > simple programming method to correspond with full-range analog Receiver
( M9 v) s8 c" z1 k> outputs (0 - full voltage).
; l k1 q8 ], H& C; W) ?0 S>
1 E5 v$ F' M' R) Z7 D> - Ability to configure and set sample rates for the inputs.
. I: G8 x7 X0 H/ R >
& m5 a' ~# M: e> - Digital output on Transmitter that turns on during the sampling period.
3 B0 j0 I" U3 W9 a ]& L5 ~* ^ >
- Q) y* @% i# ?# Z) C! C# E6 E > - Ability to configure a power saving Sleep Mode in the Transmitter by
' ]0 _, |9 [2 [% @$ I8 E > both software control and input hardware control.
4 ~" j# r) X, Z1 d >
5 f5 L! g) f- w& W- \' K- G > In order to configure the units, we would need a way to make the
$ ~# u( Y- Y" ?- |& m> settings. This would preferably be from a computer terminal so that
% A2 Q; C: Y- q1 D# {. R8 E> configurations can be saved or easily duplicated for production volumes.
- v0 @6 K& ?# o9 ?> The units should be small and compact with shielding, and able to mount
+ I* ^; A9 Z1 K6 `1 H0 `0 z% p' c> to a printed circuit board with header connector.
% i. Q. k0 P8 s6 {, v! l5 Z >
`# T8 c8 S6 y# ?/ t* |4 O> At this time, we are interested in samples of a pair of modems that
, v3 X3 W7 A2 y- r, q! b> might be similar to this proposed system. We do not expect that you
, F; _/ }3 g3 }! W H% @. F > provide all of these specifications at this time. I can describe our
/ e3 N! j! g# e- r& J > immediate application needs in the next email if this project is of
( b" u' \" L3 I S" s4 j+ c > interest to you. Perhaps you can make the samples by those
, f6 L0 N0 d9 h/ A> specifications. This will allow us to test your radios before we move
: X( k* u: T4 X* D7 y > forward. We are interested in your 900MHz radio to start.
( c$ ^: `% Z) l! X
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