|
|

楼主 |
发表于 2013-1-20 11:04:32
|
显示全部楼层
有哪位朋友用过这块板的,可否说说效果如何?看资料的频响也不算很高:
( w4 l. j1 f z0 PBalanced to unbalanced (Section 1):
( _6 W/ Q4 J& L$ `9 S# N( _Input impedance ≥ 10 kΩ, balanced/floating* i- |/ u; W( I" [! U( U, s! R: V
Maximum input level +24 dBu1 m- @$ X4 W$ s1 N
Output impedance < 100 Ω, unbalanced1 O5 M6 O5 u' l& }
Maximum output level +20 dBu7 L5 ?3 V$ G/ s6 v1 W5 }8 \
Minimum load 600 Ω% U/ s5 N3 U* M6 {6 L
Frequency response ±0.2 dB, 30 Hz...16 kHz
s9 Z0 ?1 P9 H3 I5 d( JAttenuation 0/15 dB; two fixed steps0 h+ T$ r9 I6 v3 c8 m
0...15 dB; variable2 a' f2 B( e% p
S/N > 100 dB; attenuation set to 6 dB, line level +6 dBu
0 a$ W1 |' b; ^! TUnbalanced to balanced (Section 2):
& G9 P9 K. R1 {6 d) YInput impedance 5 kΩ, unbalanced6 `- Q0 q, u% l9 A
Maximum input level +20 dBu: _! I* \: F! w( A. F1 ~6 }
Output impedance ≤ 50 Ω, balanced/floating v* i! j L& ?- x/ i- s
Minimum load 200 Ω5 \+ z2 C! @! B7 d G+ `. m; ~
Maximum output level +24 dBu
% M: m( P2 S. U. FFrequency response ±0.2 dB, 30 Hz...16 kHz2 L: ^0 U" @( t( k r* A8 i
Gain 14/30 dB; two fixed steps) |7 ` @3 W m; o, d: A# q
0...17 dB; variable
$ l7 v8 o: ~0 [: WS/N > 100 dB; gain set to 6 dB, line level +6 dBu; j* k& H" y0 v' A
Supply: ±15 V (70 mA, idling; 170 mA, each channel +24 dBu into 200 Ω) |
|