W681307 Datasheet, PDF (21/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM

W681307
6.3
Analog Transmission Characteristics
(AVDD =+3.0V ±5%, AGND = 0 volt , Top = -10 to +55° C ; all analog signal referenced to VAG; 64 Kbps PCM; FST = FSR = 8 KHz; BCLKT =
BCLKR = 1.536 MHz; MCLK = 13.824 MHz ; Unless otherwise noted)
6.3.1
Amplitude Response for Analog Transmission Performance
PARAMETER
Absolute Level *
Max. Transmit Level
SYM.
LABS
TXMAX
Frequency Response,
Relative to 0 dbm0 @
1020Hz
GRTV
Gain Variation vs Level
Tone
GLT
(1020 Hz relative to -10
dBm0)
CONDITION
 0 dBm0 = -3.0 dBm
@ 600
---
15 Hz
50 Hz
100 Hz
200 Hz
300 to 3000 Hz
3300 Hz
3400 Hz
4000 Hz
4600 to 7000 Hz
+3 to -40 dBm0
-40 to -50 dBm0
-50 to -55 dBm0
TYP.
0.549
VAG -
1dB
---
---
---
---
---
---
---
---
---
---
---
---
A/D
MIN. MAX.
---
---
---
---
---
---
---
---
---
---
---
-3
---
-0.20
---
-0.35
---
-0.5
---
---
---
---
-0.3 +0.3
-1.0 +1.0
-1.6 +1.6
D/A
MIN. MAX.
---
---
---
---
-60
-40
-20
-5
+0.15
+0.15
0
-12
-40
-0.2
-0.4
-0.8
-0.5
-0.5
-0.5
-0.5
-0.20
-0.35
-0.5
---
---
+0.2
+0.4
+0.8
UNIT
Vrms
Vpk
dB
dB
6.3.2
Distortion Characteristics for Analog Transmission Performance
PARAMETER SYM.
Absolute Group Delay DABS
Group Delay
Referenced to 1600 Hz
DRTV
Total Distortion vs.
Level Tone
DLT
(1020 Hz, Mu-Law, C-
Message)
CONDITION
1600 Hz
500 to 600 Hz
600 to 1000 Hz
1000 to 2600 Hz
2600 to 2800 Hz
2800 to 3000 Hz
+3 dBm0
0 to -30 dBm0
-40 dBm0
-45 dBm0
TYP
.
---
---
---
---
---
---
---
---
---
---
TRANSMIT
MIN.
MA
X.
---
250
---
250
---
200
---
70
---
100
---
145
36
---
36
---
29
---
25
---
RECEIVE
MI MA
N. X.
--- 200
---
30
---
20
---
70
--- 120
--- 200
34
---
36
---
30
---
25
---
UNIT
µS
µS
dBC
- 21 -
Publication Release Date: May, 2007
Revision 1.3