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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

; T6 P% [2 P9 W" G客户要求如下,如果哪家工厂可以做,请和我联系
& ~! R( s% O5 x4 w3 V% d > The application that we have in mind is similar to others that we commonly
3 T& R; a/ E" N# g9 s* G% o > have. If we were to pay for FCC approval, we would want to use the modem
1 _0 T3 d: D) b/ v6 M5 I# F7 c; r > units in all similar applications under the same approval number.
7 X: o2 k# Q+ q1 Q& B7 @1 |> Therefore, we would like to be able to configure the units to a specific
2 i Z# e; P0 k' p, X+ h > application. For the business that we do, this approach will yield more
( E0 C- x9 D* D, ?, O4 s, J > sales based on the same product and approval. We are interested in the
/ p, H4 N1 {$ v! H7 ~) G/ j9 t > following specifications:
/ n+ s* d t* a6 r% a>
# ^! J! f# v. }, B> - 2 inputs at the Transmitter with three possibilities;
+ p8 l# L; C+ J" Y1 _9 _> 2 analog
& a# w) }6 x8 ^ v8 U> 2 digital
2 ^/ B! Q3 y* u > 1 analog and 1 digital
3 ~ `3 @( c% H4 `>
- {6 g$ g2 y! N > - 2 outputs at the Receiver with three possibilities to match inputs
2 s* w+ w+ N( P* V >
" z, v: z7 ~- o > - Ability to configure/define analog Transmitter input ranges through
( `; @) j" Y5 U( [' Z8 p8 C> simple programming method to correspond with full-range analog Receiver
" ~* T1 }! ^. b: F4 \* q> outputs (0 - full voltage).
" Y# ^$ g+ `/ S. E; m+ B v >
% }, ?5 V4 e) w" v' G5 G2 j, Q* F> - Ability to configure and set sample rates for the inputs.
3 L; H* ~6 ~* i/ I0 t$ Z" b! J>
4 b8 a4 |+ Z% z0 v; L9 A > - Digital output on Transmitter that turns on during the sampling period.
0 ~& c [/ l! p: _0 c' x4 S" H>
4 S! S u4 f/ q/ ~/ Y2 \> - Ability to configure a power saving Sleep Mode in the Transmitter by
o) y) i2 G) Z x# D5 M> both software control and input hardware control.
. K+ _# i9 _! b- J4 \; A& m8 X >
; C/ G, s7 I: q! Z2 g) {> In order to configure the units, we would need a way to make the
* V6 A0 _9 K {- s9 ?> settings. This would preferably be from a computer terminal so that
6 w8 q1 v6 K& q0 v5 z: C1 M > configurations can be saved or easily duplicated for production volumes.
) a/ ]& i: F4 J5 V* J# z7 U> The units should be small and compact with shielding, and able to mount
" E o; ]6 s4 n3 J/ j* I > to a printed circuit board with header connector.
' T0 d( ^. D: P- Z3 U0 p>
$ ^7 ]4 [$ U7 t > At this time, we are interested in samples of a pair of modems that
; e, I: ?8 B: w > might be similar to this proposed system. We do not expect that you
$ Z8 M# q, ?) s. z/ P Y" ~ > provide all of these specifications at this time. I can describe our
0 L$ k5 s: J$ j* v2 B- D > immediate application needs in the next email if this project is of
' F: X; n* S% [4 Z> interest to you. Perhaps you can make the samples by those
% \) g: W {! ^" I8 V2 _ > specifications. This will allow us to test your radios before we move
; w9 y7 [8 k3 v3 t3 |/ U# K6 R1 |0 J> forward. We are interested in your 900MHz radio to start.
/ P9 e% {' t$ @/ e' r: l9 E3 t* ~
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