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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

% _/ K; ]- X0 _% ? G 客户要求如下,如果哪家工厂可以做,请和我联系
7 l: S" F' g/ c) O% K/ h* H1 y> The application that we have in mind is similar to others that we commonly
4 A$ n- ^9 @* }$ f( f' A> have. If we were to pay for FCC approval, we would want to use the modem
/ s- ^, E4 P7 C( C > units in all similar applications under the same approval number.
; Q, `4 |/ T$ q1 w6 W > Therefore, we would like to be able to configure the units to a specific
) n0 L/ Q0 y% Q > application. For the business that we do, this approach will yield more
1 i4 L9 q' V6 W> sales based on the same product and approval. We are interested in the
# K; \9 u* m+ B0 f1 M> following specifications:
1 N$ u4 G, j; Y/ {$ m9 f>
6 @5 s" I; z4 O j > - 2 inputs at the Transmitter with three possibilities;
+ n0 }) \- L9 Z> 2 analog
! y8 G7 b1 @& N, u) W > 2 digital
+ M; I Y- o% y# h( r' {( t9 ]5 B> 1 analog and 1 digital
i5 m( f* q/ O& b>
& M( o4 I! P. O& | o% } > - 2 outputs at the Receiver with three possibilities to match inputs
3 K' |3 u3 d+ V>
* Y$ ` i: F ]3 \$ g) J> - Ability to configure/define analog Transmitter input ranges through
0 m- i a# K: r> simple programming method to correspond with full-range analog Receiver
! @: g% K1 y' D8 J > outputs (0 - full voltage).
1 G4 R* P& q* _, x4 G& Y. d>
, ~* o) l/ ^) l+ s. K > - Ability to configure and set sample rates for the inputs.
% m$ M& r- C. ^3 { >
. Z' _/ @8 G: `% o* Z > - Digital output on Transmitter that turns on during the sampling period.
5 m- u7 @2 \& g/ m >
3 z$ |, T$ m0 a. W! L5 d# P > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 f! N) H- s& T- w" F9 d> both software control and input hardware control.
6 \* {; S* o2 ` >
# m) r# d8 P$ F> In order to configure the units, we would need a way to make the
7 H" H: w8 u6 t* `6 v2 l> settings. This would preferably be from a computer terminal so that
/ w" U7 G, B4 I0 s> configurations can be saved or easily duplicated for production volumes.
8 g; ~% h! {- b* p5 a > The units should be small and compact with shielding, and able to mount
, W# e4 |0 I5 n4 m/ l* Z+ j> to a printed circuit board with header connector.
& [, {! H- s" `) I. z7 d>
1 i; ~; C- |+ h8 T > At this time, we are interested in samples of a pair of modems that
N% i, D4 X$ z; Z# W& F > might be similar to this proposed system. We do not expect that you
0 @% V, E2 H1 I> provide all of these specifications at this time. I can describe our
" S0 u3 Z; M% s, z! j6 d > immediate application needs in the next email if this project is of
- o7 x% N2 q% G+ e' u2 S> interest to you. Perhaps you can make the samples by those
; |% Q, s6 K$ D ^ z3 U& b > specifications. This will allow us to test your radios before we move
O4 C" g) c7 e& W8 n' U> forward. We are interested in your 900MHz radio to start.
: e2 K3 N/ P0 Z. a' C7 d
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