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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 V. [, @2 r! w' L; {9 u客户要求如下,如果哪家工厂可以做,请和我联系
+ e( r- v/ U F> The application that we have in mind is similar to others that we commonly
- R X; _5 j1 ?9 L2 n1 n > have. If we were to pay for FCC approval, we would want to use the modem
" h5 j6 q+ A6 J+ k > units in all similar applications under the same approval number.
: R6 o3 D1 ]0 W/ c > Therefore, we would like to be able to configure the units to a specific
* E2 ^1 N# ^1 c> application. For the business that we do, this approach will yield more
8 o6 }3 i7 m: ?' R: O$ v > sales based on the same product and approval. We are interested in the
8 k9 s; Q% F7 W6 q > following specifications:
1 q) x$ J) x: @1 F+ [>
7 k* ~) ~7 l2 V4 a8 Z' S5 [' w3 X> - 2 inputs at the Transmitter with three possibilities;
W9 v7 Q' E. H! H> 2 analog
. G- M# Z. A, f7 q" r! {+ x& n O6 e> 2 digital
, g. V1 `; K6 S6 H! M1 z > 1 analog and 1 digital
9 a' o; [5 h4 O& ^& J% K+ F' ~1 z>
* \+ F0 s9 T" e- J* w> - 2 outputs at the Receiver with three possibilities to match inputs
) |6 ^7 r( v; y0 M; e>
* z* ]! ?) ^$ ^1 ]- a> - Ability to configure/define analog Transmitter input ranges through
3 \2 l: A9 T" B! Y' Q" ~1 ]* Z4 k" \' v> simple programming method to correspond with full-range analog Receiver
" {6 m* c4 K& u$ s" V, s* b > outputs (0 - full voltage).
6 [2 O6 ?; z! _6 Z/ g6 p4 ^/ } >
# E" ^, J; x/ @, M" I > - Ability to configure and set sample rates for the inputs.
, s* _# H u+ M S>
! C1 x; c4 R4 a$ U% z8 V > - Digital output on Transmitter that turns on during the sampling period.
0 s% I/ R! I* e, T$ \" Q >
: T* Z& @' w. X9 Q7 l+ b* m/ M> - Ability to configure a power saving Sleep Mode in the Transmitter by
8 B4 o% [9 k1 X! q) I) Q> both software control and input hardware control.
* F" K' |4 q/ u: i>
- x5 Y" D7 M0 s# p> In order to configure the units, we would need a way to make the
+ V; n( @8 m3 @5 P9 x3 K > settings. This would preferably be from a computer terminal so that
, b$ _; R. B) }9 g! \# S> configurations can be saved or easily duplicated for production volumes.
+ d& V/ {3 u, \: ]( o+ Q0 C0 _+ P > The units should be small and compact with shielding, and able to mount
3 w# \! D% i, l5 V2 O> to a printed circuit board with header connector.
) O7 D( I$ k" W1 N; ]; m0 ]* L/ N >
( |- W1 ]- a! q" A4 D+ b7 D; f > At this time, we are interested in samples of a pair of modems that
. w* R' |# D. o& i8 B. S- F> might be similar to this proposed system. We do not expect that you
2 `/ N9 g, c) e$ K > provide all of these specifications at this time. I can describe our
% Z. ?9 [$ C# q3 N. s7 b > immediate application needs in the next email if this project is of
' r0 y& u& D% o, U > interest to you. Perhaps you can make the samples by those
: y# V( T5 c0 y- O% r( ^ > specifications. This will allow us to test your radios before we move
# k% O l; c) N9 Y* ? > forward. We are interested in your 900MHz radio to start.
: y3 `/ i# p) Q- v
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