CN8478 Datasheet, PDF (204/221 Pages) Conexant Systems, Inc – Multichannel Synchronous Communications Controller (MUSYCC)

7.0 Electrical and Mechanical Specifications
CN8478/CN8474A/CN8472A/CN8471A
7.2 Timing and Switching Specifications
Multichannel Synchronous Communications Controller (MUSYCC™)
Figure 7-18. Serial Interface Data Delay Output Waveform
TCLK
TDAT
(Rising Edge)
V_test
V_th
V_tl
V_test
V_test
T_val
V_test
V_th
V_tl
V_max
TDAT
(Falling Edge)
T_val
V_th
V_tl
V_test
V_test
V_max
7.2.6 Package Thermal Specification
Table 7-18 lists the package thermal specifications.
Table 7-18. MUSYCC Package Thermal Resistance Characteristics
Package
Mounting
Conditions
0 (0.000)
Airflow–LFM (LMS)
50 (0.256) 100 (0.505)
200 (1.01)
Thermal Resistance (junction to ambient) = **C/W
208-BGA
Board-Mounted
26
22
19
18
208-Pin Quad Board–Mounted
21
19
17
16
Flat Pack
208-Pin Quad
Socket
23
21
19
18
Flat Pack
NOTE(S):
1. LFM–linear feet per minute.
2. LMS–linear meters per second.
3. Junction to case temperature (°C): T_jc = T_ac + (θ_ja × P_d) .
Tjc = θja x Pd(measured) + Tac(measured)
Where: Tjc = Junction Temperature (see Table 7-1).
θja = Thermal Resistance (θ-ja, see Table 7-18).
Tac = Ambient Case Temperature (see Table 7-2).
Pd = Power Dissipation = Vdd x Idd (Table 7-1).
400 (2.03)
17
14
16
7-18
Conexant
100660E