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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

2 u# A( W5 @) M U& ?: i1 g( e# F客户要求如下,如果哪家工厂可以做,请和我联系
& c' A) i4 p4 b > The application that we have in mind is similar to others that we commonly
8 V# k: g1 b# y V6 C > have. If we were to pay for FCC approval, we would want to use the modem
, L! d0 N ?4 R0 Q& V# }> units in all similar applications under the same approval number.
# m5 [5 T' B0 t > Therefore, we would like to be able to configure the units to a specific
: i8 T3 u- P. c" u* f4 r% ]> application. For the business that we do, this approach will yield more
3 Y% @5 L9 o v6 `9 u/ T% p> sales based on the same product and approval. We are interested in the
9 P6 ]; C$ Q( v( b* G- A > following specifications:
g0 c! U( [" n; b, p S! ?. b>
! t: V' I- U6 K0 q; T% T) j > - 2 inputs at the Transmitter with three possibilities;
: ~3 D" N: C" q > 2 analog
8 {8 G5 p9 V0 S, O$ B5 t' l$ g9 n > 2 digital
3 D J, D# g% D9 u- V > 1 analog and 1 digital
) L% x/ O8 |, [. H6 |>
4 S$ {& o3 f. R, r: I+ h; U3 O7 X- F6 P> - 2 outputs at the Receiver with three possibilities to match inputs
) {5 U' F& S$ U9 P) K>
0 p7 ?' v# s5 x- |9 K* G> - Ability to configure/define analog Transmitter input ranges through
6 Y% R" S& S7 T% d5 C> simple programming method to correspond with full-range analog Receiver
! O) V' Y ?1 `0 v7 W' f8 m > outputs (0 - full voltage).
; o O' U8 v: {& D* ? >
9 ]: V3 u8 ]( E > - Ability to configure and set sample rates for the inputs.
9 e' W4 D) L' h2 w: F3 e! r/ b2 L >
+ X g7 {0 j- x3 }1 c: [> - Digital output on Transmitter that turns on during the sampling period.
5 P9 Z) D( C$ C7 P$ }4 f >
: R* D, E3 j) t$ @6 O> - Ability to configure a power saving Sleep Mode in the Transmitter by
& F* `2 e$ w1 y" _4 y> both software control and input hardware control.
: G: U, d9 R. g>
) O# |3 D* w7 l+ T" X4 C7 R> In order to configure the units, we would need a way to make the
8 p8 l0 @% z) |9 F; Z > settings. This would preferably be from a computer terminal so that
Y+ k- K) _. Z> configurations can be saved or easily duplicated for production volumes.
1 ]/ y- v- z# }4 o/ H> The units should be small and compact with shielding, and able to mount
: V J. b2 K2 W* _( f> to a printed circuit board with header connector.
9 J. A/ Z% b* J8 E- m >
& m/ a" W* O$ m! ?6 k > At this time, we are interested in samples of a pair of modems that
$ r }- Y( Z; f > might be similar to this proposed system. We do not expect that you
, o6 p8 B. U% `0 T5 Q8 n; z$ O; q > provide all of these specifications at this time. I can describe our
2 I# p( g; L% R0 T > immediate application needs in the next email if this project is of
; `% {& s" `2 f > interest to you. Perhaps you can make the samples by those
0 B% f1 R; y. N& ]$ I8 F> specifications. This will allow us to test your radios before we move
7 F7 d H2 H* z6 a; \) N% K3 V > forward. We are interested in your 900MHz radio to start.
5 L0 O, ], k+ S+ R8 O% T' G: `
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