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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 @( R: e( @& o客户要求如下,如果哪家工厂可以做,请和我联系
* f* q- |4 Z/ n2 y8 ^4 n$ X> The application that we have in mind is similar to others that we commonly
: ^9 f! n* I- F* p. J6 q> have. If we were to pay for FCC approval, we would want to use the modem
v+ [, C, \0 C: j > units in all similar applications under the same approval number.
0 V+ h! s' H6 z > Therefore, we would like to be able to configure the units to a specific
3 _) W! \5 s) N/ H2 h> application. For the business that we do, this approach will yield more
* U% S) e/ ]- R& I9 o) E > sales based on the same product and approval. We are interested in the
7 b& F, X0 E7 V0 I > following specifications:
' k6 e7 O; N6 M7 S! x >
/ W8 M9 I9 D! c# V& X0 l- d) d> - 2 inputs at the Transmitter with three possibilities;
; T9 @! V: v/ k2 z2 h& P0 J > 2 analog
0 ~7 m$ _3 r& p; M) `, K > 2 digital
) K& K" K9 Q- t# n> 1 analog and 1 digital
2 X0 S& W! _5 W9 z>
2 }- Q0 v! U _* A) [ > - 2 outputs at the Receiver with three possibilities to match inputs
" R" h" x5 |% q5 \1 i0 g1 X+ Q* v>
2 S$ c* d/ C* J, {# [- ]1 _! F# ]> - Ability to configure/define analog Transmitter input ranges through
/ \0 ?1 j- H+ Z > simple programming method to correspond with full-range analog Receiver
, w+ c+ H3 x) @+ c; e> outputs (0 - full voltage).
8 M4 h: Q! P- e5 i+ S$ A6 B >
& W5 v+ T- t; x! z) e > - Ability to configure and set sample rates for the inputs.
3 ^7 T8 v0 n2 E3 b- i>
( z& s$ Q0 V$ n. G > - Digital output on Transmitter that turns on during the sampling period.
$ Z+ @9 v! s: ^( Z- e >
# t7 J# J( D& W+ ~. W. U> - Ability to configure a power saving Sleep Mode in the Transmitter by
: r1 ], A. R" t/ ?, e* }, @ > both software control and input hardware control.
( i% p0 Z9 K( ?9 _>
F( y) L( E1 U4 Z > In order to configure the units, we would need a way to make the
{" \) z8 V, R$ } > settings. This would preferably be from a computer terminal so that
* F r. Y+ H6 @. Q( I( p > configurations can be saved or easily duplicated for production volumes.
4 K" b4 F7 a! Y> The units should be small and compact with shielding, and able to mount
/ a4 C- j1 A0 k/ \# j) d2 I> to a printed circuit board with header connector.
4 C9 N, f l2 @& m7 N1 D* K>
! I6 B1 B" m% Q9 Z! I; @8 o/ b7 s> At this time, we are interested in samples of a pair of modems that
3 W6 u5 V8 P3 p/ J > might be similar to this proposed system. We do not expect that you
& V n: O9 `4 K' |$ u4 T > provide all of these specifications at this time. I can describe our
7 n9 z' Q% v( h3 s1 f+ b- f8 K > immediate application needs in the next email if this project is of
8 L( ?( u% O) y8 ^$ c w" Q7 X$ ^& b > interest to you. Perhaps you can make the samples by those
- _6 k7 L: j4 C> specifications. This will allow us to test your radios before we move
" Y" |8 Q) k1 E; v > forward. We are interested in your 900MHz radio to start.
# W# p' n8 Q/ y+ ^7 A3 Q& ^
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