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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

0 i( q; d& R) W& M客户要求如下,如果哪家工厂可以做,请和我联系
" I' n. R, L* r* a( k2 u > The application that we have in mind is similar to others that we commonly
" `8 U9 d9 _8 d9 m3 O W; H) e* \ > have. If we were to pay for FCC approval, we would want to use the modem
; i5 c0 j! C- ~# u# {- m> units in all similar applications under the same approval number.
$ s7 L& F9 i1 g; v' ~ > Therefore, we would like to be able to configure the units to a specific
- X5 J; z" I' Y> application. For the business that we do, this approach will yield more
' k) e5 K" B+ s, C- V" [4 J> sales based on the same product and approval. We are interested in the
7 Z$ O8 h0 Q/ o1 Z* q) Q$ M> following specifications:
8 J+ n' s" j `$ \3 D5 y/ d >
, R8 o0 v" f7 m r( N) A7 J6 n > - 2 inputs at the Transmitter with three possibilities;
3 |: X) i1 r+ K# T' M > 2 analog
1 \6 Y/ n3 F. n: A3 i2 y \> 2 digital
7 v7 B+ P) T3 k* P# A: b> 1 analog and 1 digital
" ?& J- z4 L: T1 N" l- ?% T; D >
3 l/ w+ _0 q; c* \1 c> - 2 outputs at the Receiver with three possibilities to match inputs
5 I4 n3 P$ b, B >
. K8 [/ q& [4 P5 G/ M7 l> - Ability to configure/define analog Transmitter input ranges through
( c: U% n6 A* |$ K > simple programming method to correspond with full-range analog Receiver
3 h$ {! ~$ J8 ~( ~" J7 e > outputs (0 - full voltage).
2 D5 j: Q! q# |8 b& F8 Q3 V>
$ `% Q( [5 p8 S; K0 e' k+ k( X> - Ability to configure and set sample rates for the inputs.
2 b2 x+ s8 [3 o >
- h% g4 D- B: x8 X+ m0 r> - Digital output on Transmitter that turns on during the sampling period.
6 |7 R7 u* @2 j >
$ N, \5 a7 G V& \& }% b J) y> - Ability to configure a power saving Sleep Mode in the Transmitter by
7 R p) Q4 A9 w. o: ? M, m> both software control and input hardware control.
& M# i G. ~" k" A>
' B& U; l4 K. T: i- b( F) ~; W > In order to configure the units, we would need a way to make the
) {- P5 c& S2 G D% v > settings. This would preferably be from a computer terminal so that
1 h3 w% O/ B2 a> configurations can be saved or easily duplicated for production volumes.
' A; t6 G/ N9 m$ ]! K, q! W> The units should be small and compact with shielding, and able to mount
2 u- m4 h! X7 q9 {; Z1 t/ X4 k" ~! e> to a printed circuit board with header connector.
6 X3 z) v) q- v/ k. c N% j >
# | a2 ~" f- j2 J# K% p- r6 H > At this time, we are interested in samples of a pair of modems that
. |& x0 B* E4 g) o> might be similar to this proposed system. We do not expect that you
; u7 i2 v ~9 B) w> provide all of these specifications at this time. I can describe our
3 K! m2 h' U5 E7 ~/ E > immediate application needs in the next email if this project is of
/ M/ u1 E! A# ~9 B2 O" [> interest to you. Perhaps you can make the samples by those
8 r* w1 J! r" s0 |7 N > specifications. This will allow us to test your radios before we move
/ @& O6 L9 q$ r6 _! b0 z; P1 `$ u > forward. We are interested in your 900MHz radio to start.
+ A/ {# d8 k5 k) K, S% G
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