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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

) A$ y j0 A+ X3 k( n* M3 ?8 H 客户要求如下,如果哪家工厂可以做,请和我联系
; T& s2 A3 d: D+ S8 H) t) x> The application that we have in mind is similar to others that we commonly
5 C* y- r( U; w# E/ g4 k% |! d> have. If we were to pay for FCC approval, we would want to use the modem
3 \+ y# u6 L& X4 P > units in all similar applications under the same approval number.
; A& j, G6 A" N* r> Therefore, we would like to be able to configure the units to a specific
9 b4 v: ]( { F& L > application. For the business that we do, this approach will yield more
4 l& G/ |2 T5 ^' U" g> sales based on the same product and approval. We are interested in the
% e U* e% S/ L > following specifications:
6 Z3 }1 x) {2 m% ^4 i# j >
e9 W8 `1 ^1 I" ~% H> - 2 inputs at the Transmitter with three possibilities;
& u7 U: t+ c% A& V, p+ A > 2 analog
7 [% b! v: r5 l! h > 2 digital
& @8 g' L4 ]; \8 t> 1 analog and 1 digital
+ F- {( K' b4 J$ w2 _! ^' ^) S5 H >
: s" K/ q7 |% Z9 u, e7 C) _; J> - 2 outputs at the Receiver with three possibilities to match inputs
* N3 \" A; X0 x8 T' ]3 t G9 G, g; N2 L >
8 g8 G o- w7 O7 X4 U$ y> - Ability to configure/define analog Transmitter input ranges through
! {4 G0 Q g$ t( w) U6 j > simple programming method to correspond with full-range analog Receiver
M' x! T: Q# z& M& N0 n2 S> outputs (0 - full voltage).
$ S- M' t! h# v- p, G" y>
0 N0 Z; G/ k* i" ? _/ Y > - Ability to configure and set sample rates for the inputs.
/ t% a; [7 {9 A5 w/ S>
) q* v" F6 I6 d( } > - Digital output on Transmitter that turns on during the sampling period.
- G( a0 {6 V6 p8 Y( s4 J3 i' G2 K >
S4 |/ P; g. c `+ B( I. q1 w > - Ability to configure a power saving Sleep Mode in the Transmitter by
( F! E6 O6 _* ~& n& P Y > both software control and input hardware control.
8 E0 d3 o C' O>
0 F8 u6 ?8 s; r3 n; Q > In order to configure the units, we would need a way to make the
! `: _8 m, n [$ z( W> settings. This would preferably be from a computer terminal so that
9 N1 \$ g1 P6 i> configurations can be saved or easily duplicated for production volumes.
9 z2 z# P5 D. B8 I8 F) g> The units should be small and compact with shielding, and able to mount
/ \) A1 v$ Q8 @2 T% v' {> to a printed circuit board with header connector.
; S+ l: z0 g: X1 e! r1 N9 B' ~>
2 o/ b% W) J2 b; I> At this time, we are interested in samples of a pair of modems that
4 O8 }3 u4 [4 J > might be similar to this proposed system. We do not expect that you
, o' x' B, l0 N> provide all of these specifications at this time. I can describe our
; F& Q9 C9 E4 ^) u> immediate application needs in the next email if this project is of
0 E0 ^6 t* L7 [' [! c. i > interest to you. Perhaps you can make the samples by those
! h1 |, K+ ~0 s7 ?; e1 t> specifications. This will allow us to test your radios before we move
7 t6 U' V/ C/ B3 a; T0 N> forward. We are interested in your 900MHz radio to start.
/ b: w$ s- C8 |0 @
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