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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 O* Z7 _' }+ F4 j客户要求如下,如果哪家工厂可以做,请和我联系
5 I9 B" Y: X/ q% w! j) D- C/ x > The application that we have in mind is similar to others that we commonly
5 B& K9 K2 U# f" p- f6 ^/ ~! Q' U> have. If we were to pay for FCC approval, we would want to use the modem
4 X' `2 a9 ?) C% b% u. A. f) k > units in all similar applications under the same approval number.
8 n o" W+ p( v, O* M; \; R4 o* M > Therefore, we would like to be able to configure the units to a specific
$ t& }$ R9 U0 f8 ?, s. w> application. For the business that we do, this approach will yield more
q0 D3 B, s; B& E6 l > sales based on the same product and approval. We are interested in the
( L" `! V6 u8 t4 M" D) O > following specifications:
+ B7 K8 K. T4 p( T' L2 P >
* f4 z$ D, a6 T& R: ] > - 2 inputs at the Transmitter with three possibilities;
5 }9 J* U" o5 D3 f4 ~> 2 analog
, [* R/ L2 u' t6 s/ o$ z. C" \1 k> 2 digital
- v) @- F* B% J1 W' n3 d > 1 analog and 1 digital
8 Q9 N% V2 r8 G9 F& V >
, Q/ C- i# v! P> - 2 outputs at the Receiver with three possibilities to match inputs
& n" P3 w4 m7 M >
N" K4 v. `7 O% u# N > - Ability to configure/define analog Transmitter input ranges through
) o+ Y; W% D6 g > simple programming method to correspond with full-range analog Receiver
. f. F3 q0 R k > outputs (0 - full voltage).
! S( r: f) c) i>
* S; f: w& d; N1 r" |+ ? > - Ability to configure and set sample rates for the inputs.
+ W _5 |% l; b: @: }' z>
5 _+ j$ k& H% `8 i > - Digital output on Transmitter that turns on during the sampling period.
7 K4 Y8 [6 I. V>
6 z- f- Z8 ]% s > - Ability to configure a power saving Sleep Mode in the Transmitter by
% d4 z6 S% Y1 F/ v% Z( D > both software control and input hardware control.
* O; x4 T: F( N3 x( m# c >
: t, \: ?; G+ l5 H > In order to configure the units, we would need a way to make the
. i( d% |( n7 m( o; j> settings. This would preferably be from a computer terminal so that
/ r5 Q1 Y) D% @ w9 ^! o- w4 N2 v3 U8 o> configurations can be saved or easily duplicated for production volumes.
% s* |8 h; E; U7 u0 H* ^3 ^$ T> The units should be small and compact with shielding, and able to mount
2 _7 A) N: Q$ a4 _" T0 h> to a printed circuit board with header connector.
/ u7 ~7 y/ S* E. V+ o P >
, k5 K$ q" L% A# @, w. n > At this time, we are interested in samples of a pair of modems that
! a7 C( |. u; _0 R# l> might be similar to this proposed system. We do not expect that you
. C8 I+ T( Y; `" }> provide all of these specifications at this time. I can describe our
4 `8 k$ s0 v( _& \0 x! s> immediate application needs in the next email if this project is of
9 D! T( u/ e: \. P* x& E9 W. M3 N, A > interest to you. Perhaps you can make the samples by those
3 M W% C3 ]0 U5 {# s( F N% }" H > specifications. This will allow us to test your radios before we move
7 P& Y7 s; o5 Y$ x% S > forward. We are interested in your 900MHz radio to start.
7 S# K5 |6 X3 ?8 r
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