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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

# E( t; D. T e 客户要求如下,如果哪家工厂可以做,请和我联系
3 r4 k! j5 m/ v D7 p; m! m > The application that we have in mind is similar to others that we commonly
# u- d3 W4 [% D1 ?0 ^! M > have. If we were to pay for FCC approval, we would want to use the modem
. \ I; t% m, ?0 W7 @> units in all similar applications under the same approval number.
: @7 E, }% }% h* h( f > Therefore, we would like to be able to configure the units to a specific
! K5 H, t4 h8 |9 V. q) ? > application. For the business that we do, this approach will yield more
- ? R2 V6 D( a. { > sales based on the same product and approval. We are interested in the
4 _) K; B) y9 j- a0 e) z > following specifications:
+ S% `" r$ J8 j5 N+ j9 X% D8 }>
& T/ `& X, Q7 Y7 [& E+ K6 R > - 2 inputs at the Transmitter with three possibilities;
7 P, U# d# w+ ?) X: } I> 2 analog
2 d- P( x( [; _, I# X- ]* ^: ^ > 2 digital
) B) E* j4 L2 A" g6 x- G > 1 analog and 1 digital
+ |$ n/ g! E1 B! a0 ~% X" p( }' Q >
" N5 X: T8 f8 l" A9 Q> - 2 outputs at the Receiver with three possibilities to match inputs
& ^) o) {# E; _, b' U0 i- u3 L>
& V; }% o# w2 G& @, M( x0 r > - Ability to configure/define analog Transmitter input ranges through
; S% r' N* z2 ^# }7 o. Z5 R* ]> simple programming method to correspond with full-range analog Receiver
' k9 ]8 R. l$ v: t) p7 X& _ > outputs (0 - full voltage).
5 F$ D6 b1 g2 ?6 Y >
/ C1 @0 C2 U: P7 y9 y9 A M> - Ability to configure and set sample rates for the inputs.
9 R, ^1 `3 A$ p& w8 r, c >
; p* y( _/ Y: Q; Z+ t( m> - Digital output on Transmitter that turns on during the sampling period.
4 ?$ q' ^& W1 C! w# ]0 W" m, H* {>
. C5 s# z7 V; ^) J0 q# F J7 O! L > - Ability to configure a power saving Sleep Mode in the Transmitter by
( N! R6 D3 \2 G( L' Y3 |2 @> both software control and input hardware control.
9 O$ n: d8 s9 p0 m; Y>
3 N, U% p5 z. w& y1 h( C> In order to configure the units, we would need a way to make the
+ m2 b: o7 \4 W2 H) w3 } > settings. This would preferably be from a computer terminal so that
* U1 R J3 t# y/ }9 v> configurations can be saved or easily duplicated for production volumes.
! e( `: }* f2 w; C' ~/ m6 T> The units should be small and compact with shielding, and able to mount
. H. H0 ?1 r+ V# q> to a printed circuit board with header connector.
. x0 b5 w1 G7 d# s V! r>
3 I, \& T% V; ]9 s> At this time, we are interested in samples of a pair of modems that
/ d% m: |9 M9 a> might be similar to this proposed system. We do not expect that you
; B. u1 ]# P4 S* S; w' P3 Y% g> provide all of these specifications at this time. I can describe our
, c3 I5 ~9 W1 h6 O* L2 C > immediate application needs in the next email if this project is of
/ p; M+ d4 J# w2 v5 k; v > interest to you. Perhaps you can make the samples by those
) J5 _0 E- K3 Y6 m& N) ^> specifications. This will allow us to test your radios before we move
0 i+ j" n. ^% m2 o4 h% D > forward. We are interested in your 900MHz radio to start.
% s# {1 x# c* D. J4 c5 w: P
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