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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

+ }( \ z5 d# R9 s) W' z 客户要求如下,如果哪家工厂可以做,请和我联系
7 O2 a* }. `) m) A' p2 r3 h > The application that we have in mind is similar to others that we commonly
: ?5 j% c& J, L c q' F > have. If we were to pay for FCC approval, we would want to use the modem
. L8 r7 x7 ^# R+ Z- Y% i> units in all similar applications under the same approval number.
; n, L( K2 O, N( u5 K! W> Therefore, we would like to be able to configure the units to a specific
- V0 w/ ]* \. n. I6 U0 Z> application. For the business that we do, this approach will yield more
" K3 S# l& x. n& R: x- Z. \; F' ]> sales based on the same product and approval. We are interested in the
/ |# c& I6 B7 `4 l9 S3 O, X6 E% P > following specifications:
" ]3 i8 O/ x: Z8 A) g- S. C>
9 x7 n+ f6 o# }, \) { > - 2 inputs at the Transmitter with three possibilities;
7 w1 q; r8 [0 Z% u9 \> 2 analog
# { O4 b% e; J. x& Z > 2 digital
: a" }. k9 j0 | > 1 analog and 1 digital
; p$ t, k9 ~. i1 s( X3 [1 S>
) q- J0 F7 D7 L# o6 [9 Y/ d6 G! I > - 2 outputs at the Receiver with three possibilities to match inputs
% w/ t% ^( T0 E4 R7 Q>
8 n" U/ l* E% F7 a> - Ability to configure/define analog Transmitter input ranges through
' o1 I4 s& [8 Y > simple programming method to correspond with full-range analog Receiver
# l2 _ s. J+ A/ B ]6 R > outputs (0 - full voltage).
5 N! u q+ G9 z, ]>
2 w2 v- P' k5 x% L( d% A> - Ability to configure and set sample rates for the inputs.
7 p0 g+ U4 \/ B. U! J1 H>
* k2 j& }. n; t, z > - Digital output on Transmitter that turns on during the sampling period.
% |/ S- A0 u% r# g: L/ [$ w/ v3 r>
7 j l1 U) \8 D& U U: k6 \> - Ability to configure a power saving Sleep Mode in the Transmitter by
" ~& _4 b: ]- I* n) I- b> both software control and input hardware control.
- i% a; n* _! J( q >
5 P4 o, a5 y2 |- g# G; n+ P( v2 q > In order to configure the units, we would need a way to make the
0 P0 g- w" R0 B& l1 a > settings. This would preferably be from a computer terminal so that
7 \* ~4 b, K4 ^+ Y% U > configurations can be saved or easily duplicated for production volumes.
# I! Z) p5 u9 E( x! V > The units should be small and compact with shielding, and able to mount
) p/ l7 K) E; k% P% s2 S> to a printed circuit board with header connector.
' f# n! F: f0 b7 I>
( o6 F0 U6 u/ D5 J: @ > At this time, we are interested in samples of a pair of modems that
8 W' W! Q; U% O, J2 s: {% d> might be similar to this proposed system. We do not expect that you
) ~. m8 _, ]$ Z J4 x1 a' P > provide all of these specifications at this time. I can describe our
7 f4 Y# E! D3 R/ m, }0 L( e> immediate application needs in the next email if this project is of
4 z& X0 @3 p6 W! d. w" {! z > interest to you. Perhaps you can make the samples by those
) |7 e4 S8 Q1 c/ v# T3 G7 k> specifications. This will allow us to test your radios before we move
5 m* v) z$ i+ y* e" g# t# K' t! o > forward. We are interested in your 900MHz radio to start.
1 C* T, [5 q! M" }
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