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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

0 N# h. w( O+ y1 U# k) J% K- s客户要求如下,如果哪家工厂可以做,请和我联系
4 w& U7 s. ~7 ?9 a( v! X> The application that we have in mind is similar to others that we commonly
, K9 q$ T }) F% Z! M> have. If we were to pay for FCC approval, we would want to use the modem
* x5 y, y8 {7 V) r > units in all similar applications under the same approval number.
w% {. V% r/ _' \1 Y> Therefore, we would like to be able to configure the units to a specific
7 z* b: y# C0 l8 l; V d > application. For the business that we do, this approach will yield more
' G" E% H& S4 Z- ?* t. g > sales based on the same product and approval. We are interested in the
5 F; f. b$ ?: W1 Q, G& Z$ L > following specifications:
( |! N' r, F5 E2 y, b>
/ Y0 v9 V: i# y. Q0 X> - 2 inputs at the Transmitter with three possibilities;
; x) V$ \' @- v. z# b1 V> 2 analog
2 ~ a e7 W- s6 g1 f/ F > 2 digital
; q8 t D1 j6 }2 {( L> 1 analog and 1 digital
3 r' ?; R' J% k >
" {! X. P" w0 k' z- e9 M+ d5 F; U > - 2 outputs at the Receiver with three possibilities to match inputs
- @! V& Z8 K5 |9 R# ~$ r% p) n4 I9 p0 W >
, _; Y0 S5 ]. j* C6 ~! t( w > - Ability to configure/define analog Transmitter input ranges through
8 ?" ?4 \6 H7 V0 f! D5 ]> simple programming method to correspond with full-range analog Receiver
5 P+ x/ v! |7 T6 ~1 D > outputs (0 - full voltage).
6 Z4 X" c! U! \5 d4 W1 T >
% r2 D" L5 [4 {: H > - Ability to configure and set sample rates for the inputs.
/ \9 z0 ?' f9 a >
) l: [5 r( q1 w0 `6 O& y' A& N+ [+ q> - Digital output on Transmitter that turns on during the sampling period.
, e) E& S: Y" [+ L/ W- X, c* P>
) A; n8 V( i1 s. j# f, J> - Ability to configure a power saving Sleep Mode in the Transmitter by
8 q7 M$ ~8 X) D> both software control and input hardware control.
9 A$ d8 ?. w+ Q3 D/ h% s4 n8 W+ g>
$ C/ p, G5 r7 R+ |/ \ > In order to configure the units, we would need a way to make the
8 S' j" S2 s, C- q( Y( ` > settings. This would preferably be from a computer terminal so that
5 O$ K: ]9 l x8 k, s> configurations can be saved or easily duplicated for production volumes.
# A* V/ W& X2 z/ P% s& \3 u> The units should be small and compact with shielding, and able to mount
) r+ z T5 M. {5 _> to a printed circuit board with header connector.
" W1 y8 _3 P3 N# m0 H' l" G4 j+ b>
; N7 z7 O; K$ O& Z% S9 w1 F > At this time, we are interested in samples of a pair of modems that
! ]! W. V* r; r& \ > might be similar to this proposed system. We do not expect that you
2 `2 j$ @( I+ K8 B9 J' [9 w1 U > provide all of these specifications at this time. I can describe our
s0 `% V) x$ D# u6 Z$ S6 T+ Y* P' F > immediate application needs in the next email if this project is of
/ F, H( k; I! b8 r > interest to you. Perhaps you can make the samples by those
* l: ~6 m: _& b4 k8 ^4 V& ~/ I> specifications. This will allow us to test your radios before we move
) e1 a, |7 V& _2 I) P> forward. We are interested in your 900MHz radio to start.
+ D% k7 h m& A1 w
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