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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

; {2 g2 a# A, S: o: c0 d1 k( x 客户要求如下,如果哪家工厂可以做,请和我联系
- y/ i+ C5 R; j8 x8 h Q3 N2 L* b> The application that we have in mind is similar to others that we commonly
) h5 {! J3 S- R: P o > have. If we were to pay for FCC approval, we would want to use the modem
" C+ w4 g: v- B! I8 O" _> units in all similar applications under the same approval number.
# h! M r) }' d+ H! u > Therefore, we would like to be able to configure the units to a specific
' L/ c; z) \, H( m0 p+ ~ > application. For the business that we do, this approach will yield more
. j0 x2 x" ?* M$ A2 D> sales based on the same product and approval. We are interested in the
- @2 E9 C* k8 x# d> following specifications:
. g- O5 H! D3 @; [ |- G E6 R>
4 `# V T) Y6 Y9 ^ > - 2 inputs at the Transmitter with three possibilities;
9 x" ?4 M" c1 R. G A7 n+ ^8 w2 { a> 2 analog
( |, G5 L Y& t8 H |% c) Y+ e > 2 digital
0 }- J; F: K' l: Z6 z0 z> 1 analog and 1 digital
+ [0 [4 v$ d/ r/ {/ i/ v >
: Z# J+ _+ U8 c) |) D: E5 u& G> - 2 outputs at the Receiver with three possibilities to match inputs
. Q- f' o* V6 ] >
; ~' V3 Y- M" U8 E+ d; Y- { > - Ability to configure/define analog Transmitter input ranges through
5 q' C9 `# s' [0 ~6 o) _> simple programming method to correspond with full-range analog Receiver
% _1 D5 w! }, z> outputs (0 - full voltage).
4 m2 V/ U3 W: n' j- \$ E >
1 n; ?5 Q2 p& |: T6 x! G5 B0 I/ L> - Ability to configure and set sample rates for the inputs.
, {( v: X3 A) ]8 X6 C# J# I>
& }- L# w8 m7 Y > - Digital output on Transmitter that turns on during the sampling period.
$ ^ x! c' l. \ >
6 e' [0 f. o K1 t1 u/ F > - Ability to configure a power saving Sleep Mode in the Transmitter by
% ]# G, G: V, X' z0 F1 x7 B> both software control and input hardware control.
5 [2 x, @9 t& W& N >
- }/ v1 Q# U$ ?0 d; t+ Z > In order to configure the units, we would need a way to make the
1 w1 C* t" V$ j1 D4 _2 N9 _> settings. This would preferably be from a computer terminal so that
7 k' a" [4 k/ f9 D- s > configurations can be saved or easily duplicated for production volumes.
% d( B' L' Q( F1 q/ L+ D > The units should be small and compact with shielding, and able to mount
h7 z: V; L/ L/ ^6 X/ X% `> to a printed circuit board with header connector.
1 E+ u4 }) f0 {# x% E3 M9 M" e" d' l4 k >
6 R7 {- B" t2 C5 O* {1 U- }9 M9 p> At this time, we are interested in samples of a pair of modems that
, t) G* M, P& T% ]7 m( j, l > might be similar to this proposed system. We do not expect that you
* I+ Z J- c: p) Z0 h- I > provide all of these specifications at this time. I can describe our
( m3 K6 u; I0 ~( d! E> immediate application needs in the next email if this project is of
/ j, S7 \" d. B. A- ]* A> interest to you. Perhaps you can make the samples by those
a( k7 y' ]% w' Y9 T! N. K; B1 M > specifications. This will allow us to test your radios before we move
, r. u% Z% x3 l> forward. We are interested in your 900MHz radio to start.
2 _2 r' |4 P# P9 m6 r2 L
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