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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

2 w" Q9 p! k) ~$ f' y+ {客户要求如下,如果哪家工厂可以做,请和我联系
7 r7 W+ [" }! m4 J% v* w> The application that we have in mind is similar to others that we commonly
! f k* B f; V4 w. j> have. If we were to pay for FCC approval, we would want to use the modem
9 Y a; X x: S) \: X9 u > units in all similar applications under the same approval number.
7 u% N: T* @* z% @: j" N> Therefore, we would like to be able to configure the units to a specific
5 X" _# n4 ]) v) u8 `' s> application. For the business that we do, this approach will yield more
% t/ q) b" U: q B2 f3 R! J4 }, Z \ > sales based on the same product and approval. We are interested in the
/ g$ V5 m& r: ^$ O/ C5 k > following specifications:
! x$ Z% \6 l0 S: v& G2 L3 l+ t4 k >
0 D1 y) h5 ?0 u( \- P$ |> - 2 inputs at the Transmitter with three possibilities;
! a( J% ]8 a+ c) i6 ?; T* }> 2 analog
8 y# l- K/ q5 [2 |; o* `! _' a' I > 2 digital
3 q. v$ m0 p4 A8 a> 1 analog and 1 digital
% H V4 |& a# v: K d >
& }' W {; }0 ?/ @4 R6 ^> - 2 outputs at the Receiver with three possibilities to match inputs
3 e! e+ s& F* P >
I/ D5 }/ W2 I! q > - Ability to configure/define analog Transmitter input ranges through
, @" { f& b) s1 E- O> simple programming method to correspond with full-range analog Receiver
! E3 N: {" y2 f > outputs (0 - full voltage).
2 U' o6 v! j& P>
7 t& d. o8 ]; b. S' f9 C9 k1 d> - Ability to configure and set sample rates for the inputs.
( m; F6 v x+ s% j1 [& o >
/ S$ w) e) p E: j/ I6 R > - Digital output on Transmitter that turns on during the sampling period.
3 f4 s. r9 D8 N1 z( h>
: X4 D2 x; |0 D& A > - Ability to configure a power saving Sleep Mode in the Transmitter by
' N5 ]3 O* B6 u( ?7 O" J' r* ^( B0 Y> both software control and input hardware control.
a+ _9 e9 M* p1 F3 z >
( G- V& l3 r J- s' J> In order to configure the units, we would need a way to make the
# g! I8 v) n9 e5 K> settings. This would preferably be from a computer terminal so that
$ P: }, V) K) h8 g! q5 y3 H" B> configurations can be saved or easily duplicated for production volumes.
2 F1 e8 q4 c6 d' v" l4 I1 x > The units should be small and compact with shielding, and able to mount
M! h) F1 F5 P. I) j0 m> to a printed circuit board with header connector.
9 k/ j- z/ e. t5 n7 b>
0 c$ P; }! C1 [, V- F$ X- n% C( W! s> At this time, we are interested in samples of a pair of modems that
8 b& C p2 e& q) N( s> might be similar to this proposed system. We do not expect that you
* L5 x9 f" g# X$ }' m/ w% t$ Z> provide all of these specifications at this time. I can describe our
0 ~+ U9 H# z) j. C; A> immediate application needs in the next email if this project is of
! a; i1 R, @+ T8 h' Q1 J. l! b> interest to you. Perhaps you can make the samples by those
' f/ q# E8 O& m > specifications. This will allow us to test your radios before we move
7 P) Z% C. J" t5 ~0 } > forward. We are interested in your 900MHz radio to start.
; Z; K+ o% E9 M: J
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