AM79213 Legerity, AM79213 Datasheet - Page 15

• Manufacturer Part Number: AM79213
• Description: (AM79C203/031 / AM79213) PCM CODEC
• Manufacturer: Legerity

ELECTRICAL REQUIREMENTS
Power Dissipation
Loop resistance = 0 to ∞ (not including fuse resistors),
2 x 50 Ω fuse resistors, VBAT = QBAT = –48 V, VCC =
+5 V. For power dissipation measurements, DC Feed
conditions are programmed as follows:
VAPP (apparent voltage) = 50.2 V
ILA (Active state current limit) = 42.3 mA
ILD (Disable state current limit) = 21.2 mA
RFD (feed resistance) = 807 Ω
Thermal Resistance
The junction-to-air thermal resistance of the ASLIC de-
vice in a 32-pin PLCC package will be less than 45°C/W.
The junction-to-air thermal resistance of the ASLAC de-
vice in a 32-pin PLCC package will be less than 45°C/W.
The junction-to-air thermal resistance of the ASLAC de-
vice in a 44-pin PLCC package will be less than 44°C/W.
ASLIC device power dissipation
Normal polarity
ASLAC device power dissipation
MCLK, PCLK = 2.048 MHz
ASLAC device power dissipation
MCLK, PCLK > 2.048 MHz
Description
On-hook Disconnect
On-hook Standby
On-hook Disable
On-hook Active
Off-hook Active R
Off-hook Disable R
ASLAC device activated
ASLAC device inactive, MPI Standby
state command issued
ASLAC device activated
ASLAC device inactive, MPI Standby
state command issued
Table 1. Power Dissipation
ASLIC/ASLAC Products
Test Conditions
L
L
= 294 Ω
= 600 Ω
VAS (anti-sat activate voltage) = 8.2 V
N2 (anti-sat feed resistance factor) = 2
VOFF (longitudinal offset voltage) = 6 V
RTMG (thermal management resistor) = 1200 Ω
RREF (reference current setting resistor) = 7.87 k Ω
Min
Typ
120
330
850
800
30
50
85
22
95
23
Max
1200
105
215
450
950
110
120
70
25
26
Unit
mW
15