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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

1 ?' q: a5 R6 D% a+ e 客户要求如下,如果哪家工厂可以做,请和我联系
# S! c( b8 O( X3 e5 Y! X6 p( Y > The application that we have in mind is similar to others that we commonly
% B1 v) y# s! y' O6 Z9 ~9 E> have. If we were to pay for FCC approval, we would want to use the modem
y" i6 B4 S: t- G. W: n, l > units in all similar applications under the same approval number.
* o; w- u: H' o& }- J" |' c> Therefore, we would like to be able to configure the units to a specific
7 d/ O* p8 f4 @$ u. x > application. For the business that we do, this approach will yield more
5 a8 ^! m9 P. [> sales based on the same product and approval. We are interested in the
; R3 q5 T) k, N3 e7 s2 p> following specifications:
4 x8 M1 l% P: ]( T( D/ v >
1 b! U5 Y y1 L# k# v> - 2 inputs at the Transmitter with three possibilities;
; V1 ~; ]. f) A, f7 a1 Z* s" V > 2 analog
; U% C& o1 V& ^! o6 p- P0 O> 2 digital
- b, d0 j: J0 b. ^" @; Y( R> 1 analog and 1 digital
$ e8 @$ f/ W% H+ G! S) {, {>
, J. Q8 O6 U- O6 w: o( g0 Z+ F$ |> - 2 outputs at the Receiver with three possibilities to match inputs
1 U8 C, ~ U1 ~1 B5 Q* N8 j>
, Q0 A& L, W1 s. l8 u) z> - Ability to configure/define analog Transmitter input ranges through
+ T$ `- |& i% J7 s7 H$ r3 h6 s% ?> simple programming method to correspond with full-range analog Receiver
6 P8 s& X2 w2 q' ?% R' Y! T) p > outputs (0 - full voltage).
2 x6 h$ A4 D: \5 P>
. H) E1 ^2 Z6 m( I1 k" ?/ {> - Ability to configure and set sample rates for the inputs.
/ X" d& q! {1 `/ z- _' K: ] n4 h4 d6 d>
* u' y2 J2 C& D+ K" G* z> - Digital output on Transmitter that turns on during the sampling period.
% o- o2 B9 o" k0 R2 \* z >
, d) Z0 L2 c1 u# r > - Ability to configure a power saving Sleep Mode in the Transmitter by
" C. D# \4 |2 K, d0 N > both software control and input hardware control.
5 N8 F/ W* X3 o* S3 i, J' E$ z >
) D% R/ l5 K5 M5 q D- t> In order to configure the units, we would need a way to make the
" y" j1 \) Q* a> settings. This would preferably be from a computer terminal so that
& ?9 g. Q8 b& \4 D; ]> configurations can be saved or easily duplicated for production volumes.
& o$ Z1 K( ^/ s+ w% R' K$ b7 |/ Z+ X: ^ > The units should be small and compact with shielding, and able to mount
' l3 C* x) V% w6 K# p0 g> to a printed circuit board with header connector.
" r1 g, y1 _* F5 |- h0 x" u>
* ]+ P: o! R, z: P3 R! D > At this time, we are interested in samples of a pair of modems that
- W' V9 `9 v6 J& Y" P! ?9 v > might be similar to this proposed system. We do not expect that you
: U) U9 ^" l) H; a > provide all of these specifications at this time. I can describe our
/ C8 E2 w: A |$ ^/ j& ~> immediate application needs in the next email if this project is of
" g- t6 b* |9 k# C2 p3 R> interest to you. Perhaps you can make the samples by those
6 j% @- A& K2 t# V7 r> specifications. This will allow us to test your radios before we move
3 [: o f4 @+ d6 ~ > forward. We are interested in your 900MHz radio to start.
8 `/ ?' s; y' i9 S+ Y2 b- Z
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