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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 F. B. g' H$ T 客户要求如下,如果哪家工厂可以做,请和我联系
% E; f- O2 ]" r, A$ N > The application that we have in mind is similar to others that we commonly
; y! N) z Q& r& ^6 U8 `/ o6 S > have. If we were to pay for FCC approval, we would want to use the modem
% u) Q1 L& f4 P q% _* b0 T7 z> units in all similar applications under the same approval number.
7 B" T/ `8 {' K5 S> Therefore, we would like to be able to configure the units to a specific
6 P" Y4 D# H, o" @' D& @5 V/ j% d> application. For the business that we do, this approach will yield more
& J; n# q4 n' \4 @: ?: p% K > sales based on the same product and approval. We are interested in the
" @$ k6 D( x) |# |3 i > following specifications:
# e2 Z# G4 J2 m >
1 @8 c4 e6 N% Y9 m> - 2 inputs at the Transmitter with three possibilities;
$ S3 z; M, ^$ w5 \8 V3 K> 2 analog
. ^ U- A+ `' s& u- c2 R> 2 digital
" s: q! J' h* ~2 t Y> 1 analog and 1 digital
7 a$ i$ ?& u0 D7 h3 _" P >
: k L2 y9 \9 R > - 2 outputs at the Receiver with three possibilities to match inputs
. C4 H4 D( |; T. `) Z# P) }3 L* t>
, N3 \ Y# l. Q6 n/ l> - Ability to configure/define analog Transmitter input ranges through
0 S* q. I% z3 o+ w > simple programming method to correspond with full-range analog Receiver
$ g9 {7 j6 W+ N+ V, R> outputs (0 - full voltage).
9 J1 ], @( g [( P8 ` >
3 S% |/ G! A& B6 {> - Ability to configure and set sample rates for the inputs.
1 ~. @/ ~: B5 Q* N& d >
% Z6 k6 Z; B% l$ j) K+ m8 Q/ g> - Digital output on Transmitter that turns on during the sampling period.
( ?' D; d- J+ G7 \( R>
# _7 e$ k! \' D, f1 B > - Ability to configure a power saving Sleep Mode in the Transmitter by
: Y9 Z `! R' q- N2 o6 u. z; n> both software control and input hardware control.
8 j- d5 X6 z( [, e# {' q5 Q0 ^>
' T& y3 q) ^) ~0 \3 {! _* _3 B6 z > In order to configure the units, we would need a way to make the
7 n: A- B) i' V! C7 o! A6 A! r( b: X> settings. This would preferably be from a computer terminal so that
* E4 A/ K$ L9 [ > configurations can be saved or easily duplicated for production volumes.
8 b' Y8 K% E7 {8 C ]> The units should be small and compact with shielding, and able to mount
. `0 e ^0 [& R% x > to a printed circuit board with header connector.
' a6 H; ]0 R9 a0 {: W6 E# U3 b7 m >
$ j4 a5 m# F/ S3 g+ C1 M G> At this time, we are interested in samples of a pair of modems that
x) Y# N/ ]5 w1 H> might be similar to this proposed system. We do not expect that you
+ E" ~2 i5 T0 ] > provide all of these specifications at this time. I can describe our
, N9 O, a c+ M1 w> immediate application needs in the next email if this project is of
6 k) m, |( `" @0 z- m> interest to you. Perhaps you can make the samples by those
4 {" y' a* I- c& m> specifications. This will allow us to test your radios before we move
: Q1 T5 {' k" T/ T1 o% \ > forward. We are interested in your 900MHz radio to start.
}( A2 H6 r3 [) Q0 W9 ?: M
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