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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

( ?4 [0 r! t: b6 c, @ 客户要求如下,如果哪家工厂可以做,请和我联系
4 s2 j( g4 }- k) e7 J) g7 D! w. W> The application that we have in mind is similar to others that we commonly
% w- j O U! f* K0 T > have. If we were to pay for FCC approval, we would want to use the modem
8 |5 ?' z* I. h1 P* e6 C> units in all similar applications under the same approval number.
+ l8 _% l" n- z5 z: x# e0 {> Therefore, we would like to be able to configure the units to a specific
+ ^( r: l/ |7 _! h2 L" G: A > application. For the business that we do, this approach will yield more
0 L# G( ~. k! b' ]* j8 v6 {! P8 M > sales based on the same product and approval. We are interested in the
$ W. `1 a" _+ x8 k. J) T > following specifications:
$ ^# B. H2 Z1 Q( t7 ^, m5 z>
# H. b" v5 H. W: I- _2 P> - 2 inputs at the Transmitter with three possibilities;
5 n- Q3 R' g7 \, v, A# O; H! Z- N > 2 analog
7 ?+ T- H6 |' k6 D5 w7 m> 2 digital
0 U0 k2 X% ^7 v> 1 analog and 1 digital
; ?/ A. W3 V: L0 ? >
" j) Y" Q! G n0 x1 Z, T> - 2 outputs at the Receiver with three possibilities to match inputs
: g' C+ }1 m( o>
2 G! f9 `" }$ O! [0 }% S# i > - Ability to configure/define analog Transmitter input ranges through
9 g# y; s0 G) e7 k3 K > simple programming method to correspond with full-range analog Receiver
4 B7 U/ h) b% G; }> outputs (0 - full voltage).
* {+ s3 w4 d2 D>
/ m# W: N, q; f> - Ability to configure and set sample rates for the inputs.
% m5 W1 _5 u) T, {% S# b>
2 q- A3 l6 @1 `6 ]: m- y0 @ > - Digital output on Transmitter that turns on during the sampling period.
7 R- @1 I7 H. A >
! D/ k3 x, `7 n; O7 r1 I9 ~ > - Ability to configure a power saving Sleep Mode in the Transmitter by
8 }. R c5 I: l4 e! E3 H l > both software control and input hardware control.
5 }2 q `+ ]9 W >
3 B8 m% n) r3 w& h1 g> In order to configure the units, we would need a way to make the
4 {, X- G9 O* S7 M' v$ h> settings. This would preferably be from a computer terminal so that
! P& T+ Z" M c> configurations can be saved or easily duplicated for production volumes.
" E) {1 M+ Z( F1 R9 b" A > The units should be small and compact with shielding, and able to mount
# Z5 w' R5 D; o v' F# ?7 _4 u> to a printed circuit board with header connector.
. j) Q; b$ E( f R0 F >
$ d' H6 }2 L% ^. a1 A7 I > At this time, we are interested in samples of a pair of modems that
5 l( @( G. ^- q% |( _) w> might be similar to this proposed system. We do not expect that you
8 g5 U* \2 l- }$ B# J > provide all of these specifications at this time. I can describe our
: a0 ~8 x4 A& v) \: r9 T' S> immediate application needs in the next email if this project is of
- x; q T% L' M# ]% e$ \ > interest to you. Perhaps you can make the samples by those
- q! @2 {: P0 P5 D > specifications. This will allow us to test your radios before we move
3 \* i4 D, I% g- [# x > forward. We are interested in your 900MHz radio to start.
; }; u& s, l" F1 {
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