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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

1 x' ^. `! A1 g! A- Z客户要求如下,如果哪家工厂可以做,请和我联系
0 ^) M! C3 f2 n' j7 f% ]0 |> The application that we have in mind is similar to others that we commonly
% q, ]4 k* k# b1 `' ~> have. If we were to pay for FCC approval, we would want to use the modem
4 w' f, T( J2 _) Y> units in all similar applications under the same approval number.
( \9 u$ I, Y4 v% d1 S > Therefore, we would like to be able to configure the units to a specific
; T8 G5 ?$ |3 y8 \ H> application. For the business that we do, this approach will yield more
3 |. a& t9 ]6 a& i > sales based on the same product and approval. We are interested in the
5 c/ D/ p$ P+ W* A- U' L* N > following specifications:
- |9 c+ V6 b! g- h ?5 ^' V; L* b. N>
$ e b w: H4 i1 _; O+ `2 N4 n> - 2 inputs at the Transmitter with three possibilities;
n+ O/ \+ P: T& @; w+ T> 2 analog
' f( m" ]. L8 v' T2 m% g# V# J> 2 digital
% A3 ?& g7 K. N: {> 1 analog and 1 digital
2 @3 q( B p) O% ^. \9 Q& o >
2 K, l z" z& C0 B3 } > - 2 outputs at the Receiver with three possibilities to match inputs
. H, y1 T2 ~0 s5 f w# ?( S* o>
% l4 ~" ?1 e$ d3 Q. O* ` t> - Ability to configure/define analog Transmitter input ranges through
& q1 C/ h0 m+ [6 m G > simple programming method to correspond with full-range analog Receiver
+ Q, t* }2 G% y% \; l3 ? > outputs (0 - full voltage).
8 h; K8 Q( ~& |5 A! s>
8 T8 a# F. ]( f) o6 m3 E% k3 G > - Ability to configure and set sample rates for the inputs.
( a, F7 P& N% r5 R) @2 W>
1 s4 S! K1 _& v1 F> - Digital output on Transmitter that turns on during the sampling period.
: t: C2 b8 \$ u. c8 x: }) ?3 c4 Y2 C >
9 |7 @& Q3 e, p( {7 r8 A7 t > - Ability to configure a power saving Sleep Mode in the Transmitter by
0 H$ p& ~: L6 q> both software control and input hardware control.
3 F2 _6 Y L4 q; @& E>
. O- |8 d5 A6 D7 |% D) T. H Z > In order to configure the units, we would need a way to make the
# q) _/ l; w% a! g% m8 c0 ~> settings. This would preferably be from a computer terminal so that
- h- j' i2 t& P: k+ z > configurations can be saved or easily duplicated for production volumes.
4 [7 C6 Y5 o- d* B# S. E: t) P> The units should be small and compact with shielding, and able to mount
9 d3 p% O; e! x0 o3 O > to a printed circuit board with header connector.
" B% N2 L( E: D4 l/ v5 u/ S+ D3 r3 x >
, S% T9 Z: C7 c% u B- c+ `> At this time, we are interested in samples of a pair of modems that
5 X) Q. ?. L4 B! p> might be similar to this proposed system. We do not expect that you
) y& E ]9 Y( P4 m7 n' E > provide all of these specifications at this time. I can describe our
[5 k2 y7 Q4 [! L4 c> immediate application needs in the next email if this project is of
+ a9 N0 y) i! F) } > interest to you. Perhaps you can make the samples by those
1 I: M6 K4 [% E4 u% p > specifications. This will allow us to test your radios before we move
( o6 L: a2 Z5 U- A7 \ > forward. We are interested in your 900MHz radio to start.
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