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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 c- y8 M; J2 P; f7 r3 J/ C 客户要求如下,如果哪家工厂可以做,请和我联系
# c) r0 c# }# z' O% V) N* \" ]; b > The application that we have in mind is similar to others that we commonly
3 d8 w( R y2 w+ T7 a> have. If we were to pay for FCC approval, we would want to use the modem
7 D3 a- K' n: ^, Z/ r> units in all similar applications under the same approval number.
, `; a: F/ m, v> Therefore, we would like to be able to configure the units to a specific
6 ]6 J& a7 T; l' E> application. For the business that we do, this approach will yield more
1 v& z# o2 K& F4 g; o > sales based on the same product and approval. We are interested in the
# Z0 u! ~' ~0 k8 G7 c) W+ M) c> following specifications:
& t- J, @ r, G) v5 } >
5 S/ F. }9 h0 j( f) V% ~ > - 2 inputs at the Transmitter with three possibilities;
0 j& `" x/ m$ w% `, i+ p) c m> 2 analog
7 @1 V+ N& Y- ^+ b2 m7 L( Q' U6 \0 a f > 2 digital
- N8 K& J, s! I5 J! Q8 s> 1 analog and 1 digital
5 m1 c2 g; D6 u- ^$ o >
, e4 l2 Q. U7 K- q4 `- u> - 2 outputs at the Receiver with three possibilities to match inputs
; ^# [. k# h. t. @0 _* f- B>
+ _2 J& `5 t! a0 ~! S" l( V> - Ability to configure/define analog Transmitter input ranges through
; L3 d, u, O3 B> simple programming method to correspond with full-range analog Receiver
# y( G. i6 _1 \# f6 p( S > outputs (0 - full voltage).
2 |8 M; ]4 p. ^4 d+ y8 E. N >
t3 h* j$ Z- a4 p> - Ability to configure and set sample rates for the inputs.
4 y% A5 e5 d3 {) ?) f, K' {6 Y >
4 P" x* {( W# L5 w" v1 l > - Digital output on Transmitter that turns on during the sampling period.
# |2 M3 S! y/ ~6 I7 U' D >
2 Z5 Q! v! m' k6 V5 A) ^ o> - Ability to configure a power saving Sleep Mode in the Transmitter by
. W' ^- M6 X% K* Y> both software control and input hardware control.
, k. Z! m% u+ R: Y>
+ Y) Z& v$ A+ o# L* K9 R > In order to configure the units, we would need a way to make the
; Q* k7 R1 t1 X7 Y, L > settings. This would preferably be from a computer terminal so that
3 q$ k) v: E" n# a S: \> configurations can be saved or easily duplicated for production volumes.
- k) O0 x; Q) T/ `+ g > The units should be small and compact with shielding, and able to mount
0 E* r' F' {7 K; Z! }, S5 V> to a printed circuit board with header connector.
) a6 W: @2 J- p. W' Z>
8 P3 K! g4 g' [3 a: _" E > At this time, we are interested in samples of a pair of modems that
. j5 A$ V2 O' G+ [- G! L d6 A# F5 L9 ^ > might be similar to this proposed system. We do not expect that you
& ?2 H6 H$ C) t% q0 i: S) M2 Z > provide all of these specifications at this time. I can describe our
% o7 I' Y8 m1 [! ~ > immediate application needs in the next email if this project is of
Z5 M! U6 N( V+ R> interest to you. Perhaps you can make the samples by those
) C; W( ?, C5 l3 H! U; {2 R' G6 ^> specifications. This will allow us to test your radios before we move
0 f, y* } K/ A: }) c> forward. We are interested in your 900MHz radio to start.
2 I4 U" Z0 A: k1 a3 z* d+ S
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