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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

! B0 g2 T8 Q: i 客户要求如下,如果哪家工厂可以做,请和我联系
: H" L6 Z3 x1 P2 a6 f' Y* v9 V> The application that we have in mind is similar to others that we commonly
: Q! _- o# s. ~ > have. If we were to pay for FCC approval, we would want to use the modem
* f. |: C7 E# L> units in all similar applications under the same approval number.
+ ^! ]- _% A# v' _7 |> Therefore, we would like to be able to configure the units to a specific
! G: G7 R$ L+ j+ w# I) z1 o7 C, O> application. For the business that we do, this approach will yield more
- w0 u, T* i* w" `/ I1 F$ j> sales based on the same product and approval. We are interested in the
- k P. P" g0 N/ {. F- ` > following specifications:
0 S& y1 z3 K2 ]- i/ v>
: B4 x+ I& W6 S: A1 E# W, F% J> - 2 inputs at the Transmitter with three possibilities;
6 q5 j! K, n% g> 2 analog
$ o: C7 G' F9 k$ p3 A( ^3 b: a> 2 digital
+ v: Z5 r8 W, x2 m2 [8 `( V > 1 analog and 1 digital
2 z/ u( n. ~' K. e, c7 H) U >
1 U8 Q$ a9 ~* M8 ]4 z: e > - 2 outputs at the Receiver with three possibilities to match inputs
& w! `( c0 U& ~& t0 `, d5 h>
# y& ~! E u3 {& R1 p8 t > - Ability to configure/define analog Transmitter input ranges through
9 ^* y* P2 W- k x4 J> simple programming method to correspond with full-range analog Receiver
% K5 {6 Z8 D$ A> outputs (0 - full voltage).
. L( o$ O! o2 r$ R3 A4 _ >
& T( J& [# g0 z> - Ability to configure and set sample rates for the inputs.
1 ]9 T3 W! K1 ?( [' k9 A>
" K P, s K* }" Q > - Digital output on Transmitter that turns on during the sampling period.
5 h0 z% u! D& G4 T: T+ I+ M>
C! }$ B4 t: y: ?; Y4 F > - Ability to configure a power saving Sleep Mode in the Transmitter by
( R! @% j, G* ~& R& R! ^> both software control and input hardware control.
: Q4 J4 m2 c) T8 j* V" C3 f8 p>
* P( C" J9 C: }" s > In order to configure the units, we would need a way to make the
1 ^6 u- r' }& B0 V3 z > settings. This would preferably be from a computer terminal so that
# U2 y4 O5 I) I" K9 \! }5 } > configurations can be saved or easily duplicated for production volumes.
7 R6 f) q" H0 x2 \> The units should be small and compact with shielding, and able to mount
! M% J3 r) I; w/ p& j$ r* N> to a printed circuit board with header connector.
$ l3 e% R4 e, w) G& b& A( I2 `$ _/ Z >
5 G% k. J3 j& p> At this time, we are interested in samples of a pair of modems that
0 K0 m1 X' S! T/ o0 a' ]> might be similar to this proposed system. We do not expect that you
" c( W) Z& m% E- R% b > provide all of these specifications at this time. I can describe our
% l8 D" `* k0 a> immediate application needs in the next email if this project is of
1 h" o5 j& e* j > interest to you. Perhaps you can make the samples by those
! C: t ^- l: `& z* x7 @1 J > specifications. This will allow us to test your radios before we move
0 ?0 g( ~; s4 b( F > forward. We are interested in your 900MHz radio to start.
, e0 M7 }* w1 q$ q y
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