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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

, Y- i+ e/ v8 F8 H7 E客户要求如下,如果哪家工厂可以做,请和我联系
# R% F m* I7 a, ?6 G2 a> The application that we have in mind is similar to others that we commonly
, q7 M% D' ]$ l1 d! G7 ^/ _ > have. If we were to pay for FCC approval, we would want to use the modem
% M8 m) u/ @; d$ X% G/ [# V, G0 A > units in all similar applications under the same approval number.
# F7 H; r2 C- Q. Q9 S+ Z' A* ] > Therefore, we would like to be able to configure the units to a specific
4 {7 {" N* M; K+ F- H > application. For the business that we do, this approach will yield more
) G( u8 X, @& o5 C* X > sales based on the same product and approval. We are interested in the
& `+ u$ W/ E! k* M+ Q& v$ a > following specifications:
/ h( H7 D2 H$ B3 P8 x >
E+ C& p1 _8 w c. H, I > - 2 inputs at the Transmitter with three possibilities;
1 `7 O9 x% R! \9 s> 2 analog
! C+ b5 z% o, Z$ _9 X! m/ a; k> 2 digital
1 Z) |9 B+ e) {. N > 1 analog and 1 digital
$ O2 E8 C3 F/ s" M% n' @, R >
; Z8 b6 _& e0 E' `/ H8 L) | > - 2 outputs at the Receiver with three possibilities to match inputs
5 e( k+ T) k5 p# Y5 R >
1 f- ]: z7 k4 D+ v+ Y3 L4 K1 B > - Ability to configure/define analog Transmitter input ranges through
% V# f" x& @. ?> simple programming method to correspond with full-range analog Receiver
8 S9 C T3 a: D' l" e: A > outputs (0 - full voltage).
7 S: o0 w1 c. l3 S7 c; L5 p) m+ A, @>
' S1 f& r$ [3 ]3 S> - Ability to configure and set sample rates for the inputs.
/ B7 r% T$ Q5 u& p) J >
0 S2 ]# A! D( S# {0 i5 {$ O > - Digital output on Transmitter that turns on during the sampling period.
6 Z" A K+ v9 ?; [7 @0 C >
- a& H1 t% j- @ }/ z- Z% T> - Ability to configure a power saving Sleep Mode in the Transmitter by
$ Y4 t2 f' g. R* Y# t @- G) Y> both software control and input hardware control.
, { a2 |# B/ j% |( a6 O4 ^ >
5 m+ r' a- `/ N4 s' Q( p> In order to configure the units, we would need a way to make the
* z4 x' c g) a6 x; X9 d& o > settings. This would preferably be from a computer terminal so that
~% S7 v1 ~# ^* z3 x> configurations can be saved or easily duplicated for production volumes.
" B& W5 z7 S7 Y O/ W > The units should be small and compact with shielding, and able to mount
: }9 I3 F# g9 O* r1 e# U- v- w( `2 E: l > to a printed circuit board with header connector.
# ` c" v3 p$ n( D2 a2 K x- s( m; E& F>
& o B l- Z6 y) m( W& ?/ w> At this time, we are interested in samples of a pair of modems that
7 ~- u6 q& g" w9 L; H/ Q> might be similar to this proposed system. We do not expect that you
7 L9 z) W* `+ v* b6 v$ o. d> provide all of these specifications at this time. I can describe our
0 w2 H5 H4 S1 g9 R> immediate application needs in the next email if this project is of
6 {3 |5 @- N# R$ d > interest to you. Perhaps you can make the samples by those
, w6 b+ R) y' w2 h > specifications. This will allow us to test your radios before we move
! u# z5 h2 a: U- n8 R/ p> forward. We are interested in your 900MHz radio to start.
. D. ?/ ~( f1 J0 G+ S0 T
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