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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

. X e+ Y2 i" L9 {: b" g 客户要求如下,如果哪家工厂可以做,请和我联系
, O! b* U6 I$ O! n; Z> The application that we have in mind is similar to others that we commonly
# ]! |3 f8 H2 s8 q> have. If we were to pay for FCC approval, we would want to use the modem
! _6 j! D' a" z& [; y> units in all similar applications under the same approval number.
4 j) z* y1 \ {) J# C> Therefore, we would like to be able to configure the units to a specific
1 c' P; w4 V$ O > application. For the business that we do, this approach will yield more
% j) x" V* l y* @3 |; H& ^+ u> sales based on the same product and approval. We are interested in the
: m. I+ ]# Y* h> following specifications:
& e2 }7 x, q4 h, b' a >
* h- |$ A1 X- a p > - 2 inputs at the Transmitter with three possibilities;
r. w. }( P$ d( T, [1 B- c& B3 e > 2 analog
/ b" s: H( O. p. x > 2 digital
1 h6 \1 A3 j/ S, i; y; W > 1 analog and 1 digital
$ j* K0 r, d! N >
2 j& w) p1 z! T! B4 X' w' \ > - 2 outputs at the Receiver with three possibilities to match inputs
: z/ Y; c+ {; B' G/ ]' a >
; O! X! m' A: o- j. D& a$ y7 y > - Ability to configure/define analog Transmitter input ranges through
" v2 n8 q- v1 _( _6 X/ c) y> simple programming method to correspond with full-range analog Receiver
9 d" E6 d; O2 B. [1 L4 M> outputs (0 - full voltage).
/ ?: f0 _( U9 s! d5 Q2 j( U>
J" B, f, S8 q* h! Q8 k" g6 ] > - Ability to configure and set sample rates for the inputs.
/ b( z5 e% i' S2 I2 {3 b2 n0 S>
$ o( U( r2 @5 M1 | > - Digital output on Transmitter that turns on during the sampling period.
8 |; s0 b2 x- ], E" a9 ]6 r >
& n9 Y/ @3 a; b6 Z' G7 F6 Y> - Ability to configure a power saving Sleep Mode in the Transmitter by
7 M" s" }+ z# t7 q8 x > both software control and input hardware control.
5 `5 C' Z. M& M7 _9 \ >
1 u' w4 N d/ _" s > In order to configure the units, we would need a way to make the
1 `" n! U y; l9 C# n > settings. This would preferably be from a computer terminal so that
3 J* G4 I6 I6 g> configurations can be saved or easily duplicated for production volumes.
& F0 r5 E Z8 K* e( A- Q0 I! ] > The units should be small and compact with shielding, and able to mount
* g+ d! Z2 I+ l6 W > to a printed circuit board with header connector.
# b( \. o0 ~1 n: Q( G! Q- o >
0 F' q$ n0 v+ Z* A> At this time, we are interested in samples of a pair of modems that
/ g: R2 W8 k3 x- V9 J5 N' [ > might be similar to this proposed system. We do not expect that you
% M4 G) C0 B* s/ u& L# `2 W > provide all of these specifications at this time. I can describe our
. m4 O3 U8 [4 D > immediate application needs in the next email if this project is of
1 w9 k# S$ }+ q! o > interest to you. Perhaps you can make the samples by those
3 C7 T3 E1 _+ f' J > specifications. This will allow us to test your radios before we move
! ~# A, Y9 v4 G! H6 S; m> forward. We are interested in your 900MHz radio to start.
- @$ A( P- f3 b T
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