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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

& e# I3 [( M: C: g( z, A客户要求如下,如果哪家工厂可以做,请和我联系
7 @" y$ s8 e# U8 B9 O0 D9 S$ I) X > The application that we have in mind is similar to others that we commonly
/ d* c8 N& V3 x2 _, V) H' z> have. If we were to pay for FCC approval, we would want to use the modem
& `% n- e0 A& K: f+ b > units in all similar applications under the same approval number.
; S O& p1 C' V7 N) W: }5 ^" b> Therefore, we would like to be able to configure the units to a specific
" C. y- h# i9 _! G0 i, w9 M > application. For the business that we do, this approach will yield more
1 R& k+ o( j/ c > sales based on the same product and approval. We are interested in the
" \- z( Y3 C- G* x9 Q1 ] > following specifications:
% f) u, D: O, t* U>
1 ^' L* s/ P! S7 i$ v: @> - 2 inputs at the Transmitter with three possibilities;
- _1 |! h6 C& W4 ~> 2 analog
! _. v0 d+ S* m9 u! T6 ? > 2 digital
7 K/ `7 q: t0 Z1 X" f+ {5 h) c> 1 analog and 1 digital
" j7 q+ Y9 e2 m, Z >
. V4 c/ J; j0 D& R9 ~# i > - 2 outputs at the Receiver with three possibilities to match inputs
7 \* A. }# D" j6 R>
7 a3 ?* g" j+ ^8 R> - Ability to configure/define analog Transmitter input ranges through
4 F$ @/ Z0 D- c! o Y( e& Y> simple programming method to correspond with full-range analog Receiver
2 U0 |1 [* |; J0 r$ e4 V. J: { > outputs (0 - full voltage).
/ t ?3 ?/ c1 {>
! ~/ [: D: q: l, g> - Ability to configure and set sample rates for the inputs.
) Z5 o/ o& p0 p& m5 ~>
1 x5 M+ o5 j& K, T > - Digital output on Transmitter that turns on during the sampling period.
# r% N! g7 I/ B1 x2 [% N >
: g- r9 K b3 N( Z- V > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 {$ R, |( W% U: e > both software control and input hardware control.
: z0 b6 ~) E& V% V8 M8 _6 N>
" e. o; h& x: c6 r# I/ k" n > In order to configure the units, we would need a way to make the
# c, Y! B) \# i$ }> settings. This would preferably be from a computer terminal so that
- m. X" Y" d) k, n: D> configurations can be saved or easily duplicated for production volumes.
/ C3 b% {/ Q9 t1 ]+ a> The units should be small and compact with shielding, and able to mount
2 x$ }7 ]! T4 @& O6 r2 N" B1 i > to a printed circuit board with header connector.
) S- A( `' n3 @>
; k% r! @" a: s+ U( i- o) X) r > At this time, we are interested in samples of a pair of modems that
0 U& Q, `) l# @5 _9 Q6 T* J> might be similar to this proposed system. We do not expect that you
- c6 h0 f! w& g( Z: u- }. k9 e> provide all of these specifications at this time. I can describe our
. p# ?' ?, R2 ~> immediate application needs in the next email if this project is of
1 l# g8 @- D& I8 n3 \3 S* y> interest to you. Perhaps you can make the samples by those
. D9 p) s$ P7 y. Y) P' v! W> specifications. This will allow us to test your radios before we move
0 L% r# q* E9 R! x6 T > forward. We are interested in your 900MHz radio to start.
* p' I% M7 m n- t9 |3 \7 I& n: {! S
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