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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

* F. m0 Q$ V7 n0 _) J5 x 客户要求如下,如果哪家工厂可以做,请和我联系
" L& O( y! e- u > The application that we have in mind is similar to others that we commonly
2 `' i) d5 z) E7 X# s> have. If we were to pay for FCC approval, we would want to use the modem
, d$ ]0 s! u3 r> units in all similar applications under the same approval number.
$ b" F+ j4 x4 X* x> Therefore, we would like to be able to configure the units to a specific
a- L7 D# y9 R' x9 ~> application. For the business that we do, this approach will yield more
1 @6 K- I( J7 g$ ?( A- W- a. v" z: K3 ^> sales based on the same product and approval. We are interested in the
. a" x- h6 W4 u \* ] > following specifications:
3 f3 u2 w% |% j$ U: S) f: Y>
# y+ q. b0 Z3 j' ? b# N6 y0 O. b > - 2 inputs at the Transmitter with three possibilities;
! ]* P3 p; r0 o! l9 D/ i4 l! Q> 2 analog
2 B% h p, ]$ I# n: h& D> 2 digital
0 z( I; c2 @/ d" x) ^7 n; h7 f> 1 analog and 1 digital
5 o B% `/ \3 M, f* @2 l; b, t& U9 e>
0 T7 U7 n/ g% `; y5 s> - 2 outputs at the Receiver with three possibilities to match inputs
* E& b7 ~4 `/ Q+ l; k" R2 Q >
9 B9 }& I. A- w, ?8 s5 R > - Ability to configure/define analog Transmitter input ranges through
4 `6 U: i. @1 Q4 w, k# O2 w > simple programming method to correspond with full-range analog Receiver
5 B& S& U; J0 }% Z' h) Z2 } > outputs (0 - full voltage).
+ U( p* }0 W. f y" e- U4 W>
# i+ j7 O9 }: s m' s* o > - Ability to configure and set sample rates for the inputs.
* {0 s5 X# f0 S/ s; Q>
0 x( z$ T& A1 {9 H! n4 |) i5 r > - Digital output on Transmitter that turns on during the sampling period.
: [, x# H" ^$ k2 j7 i& q/ @8 N6 m>
/ @8 e8 V' }* T! ]> - Ability to configure a power saving Sleep Mode in the Transmitter by
7 y, E6 T9 x, {% u2 L9 z. a/ J" z> both software control and input hardware control.
6 S! g# |4 K F9 k: X3 y$ D >
: |$ Q* W* u; I' v0 r2 }- o9 c > In order to configure the units, we would need a way to make the
( b7 k# x4 H A$ r2 P y; G > settings. This would preferably be from a computer terminal so that
5 x r4 N D5 |9 N> configurations can be saved or easily duplicated for production volumes.
% D' ?, ^; ?" b$ Z% w( r > The units should be small and compact with shielding, and able to mount
4 s6 g0 U" N' z+ S+ ]> to a printed circuit board with header connector.
+ M! ~& d1 D1 @0 T0 V- ~2 A5 I >
+ ~& V/ Z% l/ m) m> At this time, we are interested in samples of a pair of modems that
7 V, \: \' s$ J > might be similar to this proposed system. We do not expect that you
/ M5 k. a- @' ~0 g2 j > provide all of these specifications at this time. I can describe our
- k, u3 i+ J& W4 I0 }0 ?> immediate application needs in the next email if this project is of
& K2 F* n9 N6 @$ O! d> interest to you. Perhaps you can make the samples by those
0 ?9 e# r/ X2 P h> specifications. This will allow us to test your radios before we move
' D$ a5 t# x6 @% z+ ~4 Y > forward. We are interested in your 900MHz radio to start.
, W' ]: O4 n7 O
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