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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

( ^9 ~ n/ c3 _- {$ W 客户要求如下,如果哪家工厂可以做,请和我联系
( I/ |$ b- {0 s; e2 ]9 J2 u > The application that we have in mind is similar to others that we commonly
$ ^4 v: C( X ^: \ > have. If we were to pay for FCC approval, we would want to use the modem
; X% T7 Z, t8 L> units in all similar applications under the same approval number.
. |# d* q1 N( W# @" j8 K> Therefore, we would like to be able to configure the units to a specific
. I8 N) x! ]& {/ u5 k) p' _! X> application. For the business that we do, this approach will yield more
2 A* q z4 k$ a B* k> sales based on the same product and approval. We are interested in the
% K3 `' D+ k* R: x( N) l: Z7 { > following specifications:
" Y1 `# Y$ W d6 X4 g' N1 B>
. y/ K! ?7 [3 I% _ > - 2 inputs at the Transmitter with three possibilities;
7 c/ c1 j) w* c) r) o' U! C > 2 analog
6 m. G0 k. L7 s" F/ X > 2 digital
) M* I# I I- ^ > 1 analog and 1 digital
" A, `( R5 @. l* @9 ?- C% u >
! [# I/ E q* K) P5 B; M2 d> - 2 outputs at the Receiver with three possibilities to match inputs
( `: U/ C P+ Q. q n0 m5 o1 ]) _ >
& q2 X' p8 J; F3 X5 ^$ T, |/ J > - Ability to configure/define analog Transmitter input ranges through
# b7 }+ K( g' \> simple programming method to correspond with full-range analog Receiver
{2 b7 _% R. O4 u, k8 q# [> outputs (0 - full voltage).
) G+ f( M2 u7 O2 W& | D>
, ^* F- M3 X p& C; _! p> - Ability to configure and set sample rates for the inputs.
; `$ `! e+ G: v) }( t >
; x0 _( D9 G9 D, B( n3 F > - Digital output on Transmitter that turns on during the sampling period.
1 y/ d) I7 i9 ]* g U3 j+ u# I; e>
. `" K6 T) n3 S' r: f> - Ability to configure a power saving Sleep Mode in the Transmitter by
9 ]: O3 F1 v- d > both software control and input hardware control.
8 Q. v( a; {9 j9 Z# ~! M! l >
! y# r4 h5 e4 [: ~9 P+ F! S> In order to configure the units, we would need a way to make the
; O" D% V* c! @- f> settings. This would preferably be from a computer terminal so that
, q0 z* M) c' [- {. ?7 _! \" h> configurations can be saved or easily duplicated for production volumes.
2 _2 N7 Q" M& }% F( P) w5 t* n > The units should be small and compact with shielding, and able to mount
5 x7 {( ~: B; m! m! G > to a printed circuit board with header connector.
$ o2 z# q* l8 C( W5 x# j >
( A+ L% n+ h _$ V. h- ~6 p' A; }> At this time, we are interested in samples of a pair of modems that
! |& t. l0 g3 L7 n > might be similar to this proposed system. We do not expect that you
* A5 Z8 ?* j" Z9 p* j! \. y$ w> provide all of these specifications at this time. I can describe our
9 U+ U T* M1 j- K> immediate application needs in the next email if this project is of
: b2 B9 V3 G2 ^ D* u4 Z$ q9 ? > interest to you. Perhaps you can make the samples by those
# T3 \6 {( J, P3 y" q+ }4 T > specifications. This will allow us to test your radios before we move
. }/ [' D4 f" a" m( X- [ > forward. We are interested in your 900MHz radio to start.
. G4 F8 X8 b" ]3 V
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