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Text excerpt from page 49 (click to view)
HA12167FB/HA12169FB
BIAS DAC The full-scale of DAC is computed by the formula mentioned below.
V29 = 2.4 R14 to 16 2.4 R14 to 16 � R10
[V ] [V ]
V32 =
� R13
R 14: Normal Tape (pin 35) R 15: Metal Tape (pin 36) R 16: Chrome Tape (pin 37) The maximum source current of DAC output (pin 29, 32) is 2 mA. Therefor the Bias-osc is drived through external transisitor of emitter-follower. Level Meter The coupling capacitor of LMIN pin (9 pin and 52 pin). For these capacitors, please employ a small object of the leak.