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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

. b) }6 v5 h$ X" S# X! @客户要求如下,如果哪家工厂可以做,请和我联系
0 Y) m+ m3 F: G > The application that we have in mind is similar to others that we commonly
% }2 ~3 v) F2 b. I# a> have. If we were to pay for FCC approval, we would want to use the modem
* ]; r/ D" N# a; Z! k0 Z7 m: j( [ > units in all similar applications under the same approval number.
6 T/ O! L! k- ^# W > Therefore, we would like to be able to configure the units to a specific
5 ]$ z9 o& M/ o8 A5 P' O > application. For the business that we do, this approach will yield more
: E' r2 u: b$ o > sales based on the same product and approval. We are interested in the
/ y1 \8 o2 I6 N) a, o# \ > following specifications:
) Z% z* K2 `2 O >
; A8 Z. Z" b! A% q% { > - 2 inputs at the Transmitter with three possibilities;
! ^2 i+ ^5 R9 p7 y6 D> 2 analog
# P8 r) N. J @7 b4 O> 2 digital
. I- Y! X, Y" H4 U > 1 analog and 1 digital
9 H7 n& \, m" x7 l>
7 R3 E5 K5 A) N# r+ s> - 2 outputs at the Receiver with three possibilities to match inputs
! D# Z+ L, c- T: k5 b; C, n* C >
. L; P8 U9 a+ k6 G" A3 n > - Ability to configure/define analog Transmitter input ranges through
# F2 @; u3 |9 J; D) D8 I1 ` > simple programming method to correspond with full-range analog Receiver
) {8 ]7 f/ c4 J> outputs (0 - full voltage).
9 S d) P. V5 M9 j1 D! D>
7 Z. d7 x1 J9 {5 l b2 b t3 U > - Ability to configure and set sample rates for the inputs.
% [% C. n2 O" j# Y3 _9 m! `" H>
" q- o- T$ T' \, J. o; T+ t& A6 h> - Digital output on Transmitter that turns on during the sampling period.
0 W( s- C5 ~9 Y _2 U>
! q$ ]0 ^0 K4 N7 f2 I2 y5 l% I> - Ability to configure a power saving Sleep Mode in the Transmitter by
U" g/ h) U* M/ u) W+ W! y3 }> both software control and input hardware control.
; ^- C) K2 A2 k9 K0 C>
4 \# h, ?$ X( O" a# z/ c> In order to configure the units, we would need a way to make the
5 u6 I/ ^9 G' D1 x, b > settings. This would preferably be from a computer terminal so that
+ _- J& u) ?: `* E1 B1 b> configurations can be saved or easily duplicated for production volumes.
# o% G9 o5 Q( ]3 O- u# B > The units should be small and compact with shielding, and able to mount
2 D. ?7 s7 q9 ]2 |( x5 H$ Z > to a printed circuit board with header connector.
+ ]" x7 @8 X' N# r& ^& s >
+ D" x$ q2 D" U8 A > At this time, we are interested in samples of a pair of modems that
# W4 p- y. z: @: S, ^> might be similar to this proposed system. We do not expect that you
, \: M( z. d# w( _2 z, U- Z > provide all of these specifications at this time. I can describe our
4 C* R1 ^% `" p! D* b> immediate application needs in the next email if this project is of
; z5 z: s. }) ] > interest to you. Perhaps you can make the samples by those
" Y; B2 ~2 Y6 ]8 ^' ] > specifications. This will allow us to test your radios before we move
9 u6 S& X' o ^; F> forward. We are interested in your 900MHz radio to start.
Y- I+ t; P1 _9 Y
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