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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

S' C ~0 Q* Q9 _ 客户要求如下,如果哪家工厂可以做,请和我联系
1 N! h" P: L0 B1 w' U > The application that we have in mind is similar to others that we commonly
+ z5 I9 m+ L* |/ K> have. If we were to pay for FCC approval, we would want to use the modem
' {, D* `3 J( P4 u8 R1 H > units in all similar applications under the same approval number.
, s/ J0 Y6 ]8 U' F > Therefore, we would like to be able to configure the units to a specific
" `* Q+ s0 u& `# U, e" ?, {> application. For the business that we do, this approach will yield more
, |# c' a$ g/ l8 `" ?; S2 ?) v% U > sales based on the same product and approval. We are interested in the
) K) V5 L& ?, f( x( U> following specifications:
! x* }% J7 r8 ^7 L>
. s2 ~( h' M/ w8 t7 Y0 \) ]- i > - 2 inputs at the Transmitter with three possibilities;
% r' y# J' T; }> 2 analog
7 s7 G! }! V* g @> 2 digital
" F6 ?) r! j4 {4 e. J0 q> 1 analog and 1 digital
F- ^6 V k2 H5 x >
' W3 W8 ^. i# L' X> - 2 outputs at the Receiver with three possibilities to match inputs
) D' O/ b; E% u5 K! L- d& y8 w >
( g1 A$ p% t( ?- e6 l N/ O% |% V2 d> - Ability to configure/define analog Transmitter input ranges through
L l0 n( j' v1 ?0 Y6 w. e9 A8 S > simple programming method to correspond with full-range analog Receiver
3 _; L; ?' m1 P e3 f, ~ > outputs (0 - full voltage).
. v. u a& x; ^0 h+ N6 H, _>
. f1 z, q h( e. e5 ?- l7 a > - Ability to configure and set sample rates for the inputs.
3 l ~+ `/ N8 `4 Z8 `; X >
* A) g _! Z1 y# b> - Digital output on Transmitter that turns on during the sampling period.
7 i8 h8 F" Q+ T- W8 I2 q8 R6 E6 D>
. I0 p6 L: V- a" g, k' m* D> - Ability to configure a power saving Sleep Mode in the Transmitter by
: _& c! G" f$ H4 y1 Q J$ Z > both software control and input hardware control.
+ o) n- N0 ?; m: |5 Q; u. |0 ? >
7 a+ {# f. G# T) X> In order to configure the units, we would need a way to make the
: Y z" J, `' p* P2 c+ m9 S+ |) w> settings. This would preferably be from a computer terminal so that
2 A w" X9 q4 }% X > configurations can be saved or easily duplicated for production volumes.
& I) m2 k/ h7 w- E% I& o > The units should be small and compact with shielding, and able to mount
d7 V/ w4 \* \% S/ I> to a printed circuit board with header connector.
# J" P( C: O* `7 o/ D8 W( B>
& C& c/ _/ b) Z$ G5 P$ N% N3 O> At this time, we are interested in samples of a pair of modems that
8 U- i# u/ k% f+ R) D) ]0 _9 G> might be similar to this proposed system. We do not expect that you
* h' L5 F5 {. z& [ > provide all of these specifications at this time. I can describe our
! H& N5 i8 v, ~4 H+ o, Y> immediate application needs in the next email if this project is of
, h" t7 F6 t/ z3 R. N) I> interest to you. Perhaps you can make the samples by those
: ]; q9 u6 _3 ^ ?' U1 z# F6 ]> specifications. This will allow us to test your radios before we move
( T9 z- w9 l% u m > forward. We are interested in your 900MHz radio to start.
4 |6 n1 [! [3 l t: b& W
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