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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

3 s( k' ~3 ^( d4 t 客户要求如下,如果哪家工厂可以做,请和我联系
, D% L* w3 s3 R% z! P) M5 L% { > The application that we have in mind is similar to others that we commonly
# }- g7 [0 ~/ q9 V! k > have. If we were to pay for FCC approval, we would want to use the modem
' v2 p+ p8 @% q) _" e3 @7 ~> units in all similar applications under the same approval number.
: P( j k2 }% h0 N> Therefore, we would like to be able to configure the units to a specific
5 j$ M: L* f+ b > application. For the business that we do, this approach will yield more
% l: }$ a) d7 g> sales based on the same product and approval. We are interested in the
/ S, j/ C9 ]" u; \- C1 l> following specifications:
! _2 e6 T9 k, P0 A& {( X( g' M2 v>
# P5 Q z- X6 c! _; {8 f> - 2 inputs at the Transmitter with three possibilities;
B" X7 S8 j6 ~& I2 D> 2 analog
& f1 s) V0 B) W. Q> 2 digital
# @3 l& ?, T3 ~. T; Z$ K > 1 analog and 1 digital
1 Z- n4 G5 ]- s# t& K >
, J$ U" A ]9 }( P5 c > - 2 outputs at the Receiver with three possibilities to match inputs
2 d- B3 o1 a5 {; z B7 p >
; m1 B1 c3 L* o z* u! a% ~ > - Ability to configure/define analog Transmitter input ranges through
$ Y0 X& y- G1 n& D6 J( [9 U8 N7 V > simple programming method to correspond with full-range analog Receiver
% U' V; V2 |$ R( `; O) z2 n* {> outputs (0 - full voltage).
6 _- A, n2 m; z7 y* H+ m >
0 s3 Z C# f7 |& z > - Ability to configure and set sample rates for the inputs.
& z) A3 {' B7 F; B0 Q* D; E >
- Z! {2 k0 N7 Q9 e > - Digital output on Transmitter that turns on during the sampling period.
! `2 M. \& E2 \. s >
2 u3 {: Y6 v+ C! e; z0 k3 @ > - Ability to configure a power saving Sleep Mode in the Transmitter by
3 J, b0 g( e! t1 w) S9 L! v0 R > both software control and input hardware control.
: H6 X5 }5 @4 `# _ |, s+ z>
) J- r* I% U) N& o > In order to configure the units, we would need a way to make the
- x" d& |3 Z0 _ d0 `* D$ o: `0 R> settings. This would preferably be from a computer terminal so that
6 C4 R: d( A$ P" P0 m5 O: j> configurations can be saved or easily duplicated for production volumes.
* j$ u4 Z) M) g, D; b > The units should be small and compact with shielding, and able to mount
2 Q" b5 D" K3 J( [5 g3 g# U> to a printed circuit board with header connector.
0 I [. c& t3 {$ ?9 ~. l- O >
; R8 x# x ]7 `' y1 f4 D4 q > At this time, we are interested in samples of a pair of modems that
9 \3 @/ m- P2 I- A+ Y > might be similar to this proposed system. We do not expect that you
9 ^7 a) M7 O2 ^! T2 F* \> provide all of these specifications at this time. I can describe our
' G) i0 m3 @( @1 Y2 V7 k4 \% L> immediate application needs in the next email if this project is of
$ F1 J' I/ j2 N0 x > interest to you. Perhaps you can make the samples by those
6 h" u. ~ A+ V* U7 D> specifications. This will allow us to test your radios before we move
/ F: Z" Y+ E; @) X > forward. We are interested in your 900MHz radio to start.
& C9 w* N9 K6 j
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