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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

+ A* ?1 n% a, ^! f 客户要求如下,如果哪家工厂可以做,请和我联系
^9 i% b3 b' c, ~/ \> The application that we have in mind is similar to others that we commonly
0 V, v- `8 d8 R& m$ B( g> have. If we were to pay for FCC approval, we would want to use the modem
' o+ O- ^3 n* ]/ b> units in all similar applications under the same approval number.
% |1 X' a" [7 a& ` > Therefore, we would like to be able to configure the units to a specific
. o# S# Q! j! s$ M9 R8 W5 f > application. For the business that we do, this approach will yield more
; N8 h5 |0 P! j c3 A> sales based on the same product and approval. We are interested in the
6 v( ]4 O: {' ]: Q> following specifications:
# d U$ U$ u4 h5 J4 V/ ] >
: n/ M; f2 e+ F# A1 G$ i > - 2 inputs at the Transmitter with three possibilities;
: H/ I" D3 @& V: x |4 ^> 2 analog
4 R. K0 T" F7 u: Z7 k1 {# u5 ]4 C$ L> 2 digital
* ~0 H4 n/ ?" W> 1 analog and 1 digital
& h. S p9 z( I0 t9 P >
5 u5 a1 M9 V6 V) y: T! c; x- D+ i! d% V> - 2 outputs at the Receiver with three possibilities to match inputs
3 v/ N9 c! v# r6 H4 S4 i >
! p/ i4 G2 k4 e > - Ability to configure/define analog Transmitter input ranges through
# k5 A2 R! n; z" e/ v' ? > simple programming method to correspond with full-range analog Receiver
+ T2 N3 ~$ I4 J* w( Q. G> outputs (0 - full voltage).
. ?; @ T' c# @2 @$ E( z, a >
& e) j- j) _) H- o- q- l9 e/ r > - Ability to configure and set sample rates for the inputs.
3 g. c8 v9 o) k>
# M9 k) B9 }1 Q' }2 k% i) G0 l4 f! e > - Digital output on Transmitter that turns on during the sampling period.
( Q4 q8 o$ J; V: z8 ^4 D1 O4 [+ r>
$ I- F& R$ U' \2 s! g > - Ability to configure a power saving Sleep Mode in the Transmitter by
" P5 g. V7 z; j1 E! y. F2 j1 { > both software control and input hardware control.
$ b4 n0 M% q; J>
2 S$ ]" L" ?/ [. F > In order to configure the units, we would need a way to make the
5 T# l! f6 k1 A5 z > settings. This would preferably be from a computer terminal so that
7 f9 \$ B. P9 p/ M. S > configurations can be saved or easily duplicated for production volumes.
$ z9 I% H) {6 k" R+ Y> The units should be small and compact with shielding, and able to mount
, Y# x1 D3 a2 a. b8 A, D2 h> to a printed circuit board with header connector.
3 j- d, v# D' y# ]: X >
( g3 U9 h: s; C$ e( a> At this time, we are interested in samples of a pair of modems that
% l1 I; A9 }* z5 f> might be similar to this proposed system. We do not expect that you
+ z: l- v6 d1 W> provide all of these specifications at this time. I can describe our
: K2 i1 z4 y9 ^& _2 U( N> immediate application needs in the next email if this project is of
" p; [7 N( t" e5 [0 z > interest to you. Perhaps you can make the samples by those
8 {. g! Q: T8 f3 s' O" n) T$ e- S; z& ]> specifications. This will allow us to test your radios before we move
# A {" \: v0 N5 v3 l+ A* I> forward. We are interested in your 900MHz radio to start.
: E2 p/ q: I7 N% E& K
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