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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

/ V2 T8 V9 L2 _' R5 l! I' [客户要求如下,如果哪家工厂可以做,请和我联系
7 r7 T( m% g$ ]2 Z > The application that we have in mind is similar to others that we commonly
* K: L) X& y2 s$ e ^, B* f' r> have. If we were to pay for FCC approval, we would want to use the modem
6 R: ~8 r0 E2 m- {" F% {6 t8 ?> units in all similar applications under the same approval number.
' N% R, I5 B2 k' C1 }! P( i; W% P > Therefore, we would like to be able to configure the units to a specific
@' e# f6 R5 u4 g' L9 F% ?1 W > application. For the business that we do, this approach will yield more
. B3 K4 V7 `6 ~ > sales based on the same product and approval. We are interested in the
' T3 ^ X" I8 C- h> following specifications:
) {+ f: X+ ?# }# u9 B' W# V& P >
3 t7 C2 A R9 \7 Q1 C8 L> - 2 inputs at the Transmitter with three possibilities;
; r5 J) C1 L0 n" F> 2 analog
" |! e* ?3 T. T3 B) ^1 }. u5 y& U) R > 2 digital
6 b* t$ m$ \) _, q; g i" B> 1 analog and 1 digital
$ \( ^) T& x- a >
, K5 k; J0 w7 @1 J7 D> - 2 outputs at the Receiver with three possibilities to match inputs
7 z4 p W/ _. S0 K1 c- i>
" b: f/ {0 Q' A+ ^0 v: ? > - Ability to configure/define analog Transmitter input ranges through
+ Q& |' H f2 H) N > simple programming method to correspond with full-range analog Receiver
: m7 u, d u: |& z- k8 W> outputs (0 - full voltage).
7 x$ d0 C) ]* N4 t/ n, K7 n" [>
9 Y V& y, J! r8 g3 K6 B9 Q5 Z > - Ability to configure and set sample rates for the inputs.
* `% A, c" Z4 S >
7 I6 x9 I- f) d" M > - Digital output on Transmitter that turns on during the sampling period.
1 N. {0 p) d" n5 }% d >
4 N# G* c M! }- Z k> - Ability to configure a power saving Sleep Mode in the Transmitter by
3 ~& Q& `2 v) ~% I! A$ Z5 Z, m6 n4 [% `> both software control and input hardware control.
& W2 w* F7 i' ? >
- ?+ }; I5 m9 P8 j7 |, G > In order to configure the units, we would need a way to make the
. _) g4 M+ N' k' u6 j9 I! a3 m> settings. This would preferably be from a computer terminal so that
; J( I- X3 u% W7 C" o; q > configurations can be saved or easily duplicated for production volumes.
2 Y. p' V+ k* Z- t% o( I; @$ U> The units should be small and compact with shielding, and able to mount
+ A/ w' p! p$ D/ L* g+ S& O > to a printed circuit board with header connector.
9 r; O% L, ?7 V( M- g: ], h >
% X5 x1 M8 U" v) W7 e4 y$ X7 D/ n> At this time, we are interested in samples of a pair of modems that
* m2 u) T$ U* X! ? R > might be similar to this proposed system. We do not expect that you
8 v9 D6 Y1 b$ {2 }, ` U5 Y> provide all of these specifications at this time. I can describe our
' w; P5 j) U; a$ n. @2 c6 {( z1 d> immediate application needs in the next email if this project is of
7 n( |5 d# E7 F" V7 i5 W> interest to you. Perhaps you can make the samples by those
; m6 G( @: @ f& x+ A > specifications. This will allow us to test your radios before we move
. \% ?. D1 m7 f# B> forward. We are interested in your 900MHz radio to start.
& a% q6 W- n+ P/ Z8 s. O7 S9 W- ?. O
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