W681513_05 Datasheet, PDF (23/35 Pages) Winbond – 5V SINGLE-CHANNEL VOICEBAND CODEC FOR USB APPLICATIONS

W681513
10.3. ANALOG DISTORTION AND NOISE PARAMETERS
V_DD=5V ±10%; V_SS=0V; T_A=-40°C to +85°C; all analog signals referred to V_AG;
MCLK=BCLK= 2MHz; FST=FSR=8 kHz synchronous operation
PARAMETER
SYM.
CONDITION
TRANSMIT (A/D)
MIN. TYP. MAX.
Total Distortion vs.
D_LTμ +3 dBm0
36
---
---
Level Tone (1020 Hz,
0 dBm0 to -30 dBm0
36 ---
---
μ-Law, C-Message
Weighted)
-40 dBm0
29
---
---
-45 dBm0
25
---
---
Total Distortion vs.
D_LTA +3 dBm0
36
---
---
Level Tone (1020 Hz,
A-Law, Psophometric
0 dBm0 to -30 dBm0
36 ---
---
Weighted)
-40 dBm0
29
---
---
-45 dBm0
25
---
---
Spurious Out-Of-Band D_SPO 4600 Hz to 7600 Hz
---
---
---
at RO+ (300 Hz to
3400 Hz @ 0dBm0)
7600 Hz to 8400 Hz
---
---
---
8400 Hz to 100000 Hz
---
---
---
Spurious In-Band (700 D_SPI
Hz to 1100 Hz @
0dBm0)
300 to 3000 Hz
---
--- -47
Intermodulation
D_IM
Distortion (300 Hz to
3400 Hz –4 to –21
dBm0
Two tones
---
--- -41
Crosstalk (1020 Hz @ D_XT
0dBm0)
---
--- -75
Absolute Group Delay _τABS 1200Hz
---
--- 360
Group Delay
τ_D
Distortion (relative to
group delay @ 1200
Hz)
500 Hz
600 Hz
1000 Hz
2600 Hz
---
--- 750
---
--- 380
---
--- 130
---
--- 130
2800 Hz
---
--- 750
Idle Channel Noise
N_IDL μ-Law; C-message
A-Law; Psophometric
---
---
18
---
--- -68
RECEIVE (D/A)
UNIT
MIN. TYP. MAX.
34
---
--- dBC
36
---
---
30
---
---
25
---
---
34
---
--- dBp
36
---
---
30
---
---
25
---
---
---
--- -30 dB
---
--- -40
---
--- -30
---
--- -47 dB
---
--- -41 dB
---
--- -75 dBm0
---
--- 240 μsec
---
--- 750 μsec
---
--- 370
---
--- 120
---
--- 120
---
--- 750
---
--- 13 dBrnc0
---
--- -78 dBm0p
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Publication Release Date: October, 2005
Revision A11