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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

7 ]- E3 B7 d6 P. R 客户要求如下,如果哪家工厂可以做,请和我联系
3 { A7 q9 }- v# B- Q > The application that we have in mind is similar to others that we commonly
. c0 i$ a; A0 M- t3 x > have. If we were to pay for FCC approval, we would want to use the modem
/ w" |( ~/ r% T$ O8 P; a$ m" w$ Y > units in all similar applications under the same approval number.
, h# f$ x5 _( x- X0 k > Therefore, we would like to be able to configure the units to a specific
1 i! h$ ~) c5 E' P* ]3 I' U- p( O! u> application. For the business that we do, this approach will yield more
& @$ D) ^+ }% ]( h* b' `5 u> sales based on the same product and approval. We are interested in the
* s- n7 [+ k6 @, [) ?# q8 q> following specifications:
1 a* B5 y- F8 u' d" v5 X6 ?, B >
1 l+ O1 O p; W' S. F9 N$ d> - 2 inputs at the Transmitter with three possibilities;
5 ~9 t% p# t2 r: M$ T/ v > 2 analog
! _& }6 R; Q. ^0 H7 ^8 m > 2 digital
0 p; l6 h6 E+ F& B: I% e" w > 1 analog and 1 digital
F' `- k8 u" a# y& K% R% U2 _ >
, I$ S _; R0 I" i* y, E1 w3 \. b> - 2 outputs at the Receiver with three possibilities to match inputs
8 P- V- o# {, F$ N( F- k' R>
+ I* p. M, @0 s' R2 A6 @' x5 T6 M8 C > - Ability to configure/define analog Transmitter input ranges through
) K7 a2 |2 Y% @8 E# i2 \- ?0 {> simple programming method to correspond with full-range analog Receiver
9 ^. t% D* u7 w > outputs (0 - full voltage).
2 O y+ A3 ~; [: v' e$ i+ [1 Y >
7 G4 M! B5 t% j > - Ability to configure and set sample rates for the inputs.
* {' G+ v' a: k! a >
. k; _+ ~! X! W" v7 j# t& x# V > - Digital output on Transmitter that turns on during the sampling period.
1 p+ K7 M& P1 x/ B >
; ?" N7 |3 w& j/ h> - Ability to configure a power saving Sleep Mode in the Transmitter by
5 D7 C" D: B. w# Q4 x4 ~( y > both software control and input hardware control.
+ W) [4 ^+ x1 [- Q! I >
% _ a9 N9 _( z" E/ j1 u> In order to configure the units, we would need a way to make the
: Q$ D- b% N: B. c$ C2 G# J > settings. This would preferably be from a computer terminal so that
1 E2 m. S# N, z8 N8 o( }8 p4 w) K |> configurations can be saved or easily duplicated for production volumes.
3 w6 {. X5 A. a% M) w3 B6 v > The units should be small and compact with shielding, and able to mount
: p1 D9 x [6 i3 U3 N+ c> to a printed circuit board with header connector.
3 ~! e% b7 p9 t4 w) b) @ >
9 {* r4 M9 D& o& ~' j> At this time, we are interested in samples of a pair of modems that
; H6 X' c: A' G; L > might be similar to this proposed system. We do not expect that you
0 ]) z& Q5 r9 s2 G ?> provide all of these specifications at this time. I can describe our
V/ E* q% J4 }3 Y# j) t> immediate application needs in the next email if this project is of
1 @6 i1 H$ c; G7 v7 j* ^ > interest to you. Perhaps you can make the samples by those
$ i: | e' F. E2 M' h> specifications. This will allow us to test your radios before we move
) k6 V1 \8 o) P. I0 E3 X; D> forward. We are interested in your 900MHz radio to start.
& G: ]# O$ E1 V _% E4 {
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