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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

; {/ K/ _" r$ a4 V! q4 p客户要求如下,如果哪家工厂可以做,请和我联系
# }0 z( E! R! e4 B> The application that we have in mind is similar to others that we commonly
" d/ y' y, s# _, x L> have. If we were to pay for FCC approval, we would want to use the modem
5 [) ^9 b4 Q S# I7 d+ v t+ c> units in all similar applications under the same approval number.
; {, m$ Y/ C) C5 T > Therefore, we would like to be able to configure the units to a specific
6 W2 J1 [# K9 B% J& A0 I > application. For the business that we do, this approach will yield more
0 _! j" Q0 R5 _> sales based on the same product and approval. We are interested in the
' f6 Q5 ~: u. v6 j1 t6 f, c; c> following specifications:
8 [* \) v1 O9 O>
8 l7 V* v4 }2 N> - 2 inputs at the Transmitter with three possibilities;
2 H+ B- [8 ~( A) ~ > 2 analog
3 d7 I$ ~. |6 G0 o( v) Z' R' b> 2 digital
/ M" g9 d) a0 V; ?8 [2 S8 h" h> 1 analog and 1 digital
- I) G9 ^( Z. i. M0 Y >
; q3 W# [, ?9 p7 t* \ > - 2 outputs at the Receiver with three possibilities to match inputs
0 g/ Y, M, }: ^: p>
6 h8 T/ m. B5 O; [( f: x3 t$ _ > - Ability to configure/define analog Transmitter input ranges through
: {' u1 C! |/ y- M/ {# S$ x& h' g > simple programming method to correspond with full-range analog Receiver
7 S2 O; Z0 A) h/ g: I3 p > outputs (0 - full voltage).
( o3 K. ?+ [8 I( E9 b3 o. w! F >
' e* ] X7 `* y5 y> - Ability to configure and set sample rates for the inputs.
2 F9 K* t: D- }/ K >
" Q8 e# @$ E$ G% ]> - Digital output on Transmitter that turns on during the sampling period.
" M8 R$ d5 w* M2 L2 F>
: `4 ^0 y# K. L, k/ ^; ^3 W > - Ability to configure a power saving Sleep Mode in the Transmitter by
3 Q" X( X- A F5 c6 V# ~# T* Y > both software control and input hardware control.
/ @" h- q( v8 ?4 y. S/ ]1 j: f>
& k$ S- x; z) \! g > In order to configure the units, we would need a way to make the
( T2 e; k- H% m> settings. This would preferably be from a computer terminal so that
5 s6 I4 U- o1 K) y4 e. P> configurations can be saved or easily duplicated for production volumes.
" M# n4 R4 g) _3 r4 Q) ~( }> The units should be small and compact with shielding, and able to mount
0 ]4 b4 O6 |: g6 L5 \! P> to a printed circuit board with header connector.
4 x4 _6 j! G7 v+ L >
9 |* U- J& H9 P9 S1 K5 M7 q> At this time, we are interested in samples of a pair of modems that
0 [: ^7 \3 X+ [, a4 z3 v > might be similar to this proposed system. We do not expect that you
' C% }( y, l) [& b& U# Q o > provide all of these specifications at this time. I can describe our
! B9 c+ g2 x2 K: u6 _> immediate application needs in the next email if this project is of
0 H9 o- S5 Q( d Q/ ?> interest to you. Perhaps you can make the samples by those
1 G+ Z f+ T9 L! c$ P" ^> specifications. This will allow us to test your radios before we move
5 g. H& I8 k/ N0 d > forward. We are interested in your 900MHz radio to start.
2 P4 B7 p. @ n- e' _
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