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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

: _- R* |/ M8 W: }+ F! K6 Y客户要求如下,如果哪家工厂可以做,请和我联系
8 s+ l, ^ _# |, y! k3 Z7 ^) ]8 l! } > The application that we have in mind is similar to others that we commonly
: u: a+ s' m' Z% O+ ], c5 L > have. If we were to pay for FCC approval, we would want to use the modem
, ^# q" e1 ?# f- o A > units in all similar applications under the same approval number.
$ o; u8 e' P4 ^: e+ ~> Therefore, we would like to be able to configure the units to a specific
& P2 U( d8 {7 k3 W b* b3 S2 ^> application. For the business that we do, this approach will yield more
2 \& N7 Y6 }5 b3 U" S3 v > sales based on the same product and approval. We are interested in the
% o1 J: O' D* f+ q, P4 \2 o, q> following specifications:
: _0 ~8 y3 @9 E >
2 Y/ Z* c" z! Y$ w& U > - 2 inputs at the Transmitter with three possibilities;
Y9 H/ h; g( n > 2 analog
* L: t7 {% Q& w! W( V) {+ r> 2 digital
9 f/ O9 H7 _$ O: }> 1 analog and 1 digital
0 J e: p* o- k6 L1 O- t* c >
' e+ d& O) S0 \$ n > - 2 outputs at the Receiver with three possibilities to match inputs
F3 B+ L4 k& P2 T4 A >
1 D; a* }) v- P' S) T# V > - Ability to configure/define analog Transmitter input ranges through
" I! v' T C! ^> simple programming method to correspond with full-range analog Receiver
7 g S* Z2 t" `7 x( D, Y> outputs (0 - full voltage).
- h n- I& }8 N7 B% { >
7 g- b6 v4 W4 A5 b( x! z+ ~ > - Ability to configure and set sample rates for the inputs.
3 I1 ?) v) k# N2 L- w2 S* C>
* ~3 i2 X% E2 ] c' V# @3 n- e5 C> - Digital output on Transmitter that turns on during the sampling period.
i2 `9 M; L. M3 Y$ u, G( i" f>
. `% O% H: _* c > - Ability to configure a power saving Sleep Mode in the Transmitter by
8 t! @. r5 \3 |' v6 b- |: H> both software control and input hardware control.
% G4 F. m; q" W>
' S% p% [8 E- b# m > In order to configure the units, we would need a way to make the
2 I, o( O0 T* x2 B6 V8 l> settings. This would preferably be from a computer terminal so that
1 C ]- |( w8 ~- {> configurations can be saved or easily duplicated for production volumes.
$ G- g" g o4 v( V > The units should be small and compact with shielding, and able to mount
2 q: k3 r) I+ Q( [% J2 n > to a printed circuit board with header connector.
. ?9 W4 e& A- k! v4 g% e/ K >
" J& E" R3 l4 A; Q> At this time, we are interested in samples of a pair of modems that
2 M2 k; j: _* G: @0 t > might be similar to this proposed system. We do not expect that you
4 p! j* T1 ~6 {( a> provide all of these specifications at this time. I can describe our
5 Y# W8 m' y T* |- Z& s2 } > immediate application needs in the next email if this project is of
( B2 T2 q$ E' A0 R2 C > interest to you. Perhaps you can make the samples by those
: r( e2 f: ?, q& O8 I) y > specifications. This will allow us to test your radios before we move
0 K2 U7 }% N% v& P1 U; q > forward. We are interested in your 900MHz radio to start.
* b" G& Y1 v: _) T* g- h9 e
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